Performance Report for:

https://www.zillow.com

2021-02-17 23:56:39
California, United States

Fully Loaded Time

0.21s

Total Page Size

1.1M

Requests

199

Performance Scores

Overall Score

F
(16%)

Desktop Performance Score

A
(96.57%)

Mobile PageSpeed Score

D
(63.94%)
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Summary

Here is more detailed information about the page.


Speed Visualization

0.3s
0.6s
0.9s
1.2s
1.5s
1.8s
2.1s
2.4s
2.7s
3.0s





TTFB: 164.216
First Contentful Paint: 0.6 s
Time to Interactive: 1.5 s
Largest Contentful Paint: 1.4 s



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Page Title
Page Title : Zillow: Real Estate, Apartments, Mortgages & Home Values

About this SEO factor:
Title is the heading of the webpage. The sentence or string enclosed between html title tag () is the title of your website. Search engines searches for the title of your website and displays title along with your website address on search result. Title is the most important element for both SEO and social sharing. Title should be less than 50 to 60 characters because search engine typically displays this length of string or sentence on search result. A good title can consist the primary keyword, secondary keyword and brand name. For example a fictitious gaming information providing sites title may be like "the future of gaming information is here". A webpage title should contain a proper glimpse of the website. title is important element as an identification of your website for user experience, SEO and social sharing. So have a nice and catching title.
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Meta Description
Meta Description : The leading real estate marketplace. Search millions of for-sale and rental listings, compare Zestimate® home values and connect with local professionals.

Your meta description exceeds 150 characters. It's not good.

About this SEO factor:
Description is the full interpretation of your website content and features. Most often it is a short paragraph that describe what are features and information provided by the website to its visitors. You may consider it a advertising of your website. Although not important for search engine ranking but very important for hits or visits through search engine results. Description should be less than 150 character because search engine shows this length of paragraph on search result. And every page of website should contain an unique description to avoid description duplication. Description is the definition of your website for user experience so form it as complete but short and precise illustration of your website.
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Meta Keyword
Meta Keyword :


Your site do not have any meta keyword.

About this SEO factor:
Meta keywords are keywords inside Meta tags. Meta keywords are not likely to be used for search engine ranking. the words of title and description can be used as meta keywords. it is a good idea for SEO other than search engine ranking.
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Single Keywords
Keyword Occurrence Density Possible Spam
estate 66 5.665 % No
real 61 5.236 % No
rates 54 4.635 % No
mortgage 52 4.464 % Yes
rent 52 4.464 % No
houses 26 2.232 % No
apartments 25 2.146 % No
San 8 0.687 % No
Real 7 0.601 % No
Open 7 0.601 % Yes
Zillow 7 0.601 % No
submenu 6 0.515 % No
calculator 6 0.515 % No
Chevron 6 0.515 % No
Washington 6 0.515 % No
Home 6 0.515 % Yes
City 5 0.429 % No
Oklahoma 5 0.429 % No
Mortgage 5 0.429 % Yes
Virginia 5 0.429 % No
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Two Word Keywords
Keyword Occurrence Density Possible Spam
real estate 61 5.236 % No
mortgage rates 52 4.464 % No
for rent 52 4.464 % No
apartments for 25 2.146 % No
houses for 25 2.146 % No
submenu Chevron 6 0.515 % No
Chevron Down 6 0.515 % No
New York 5 0.429 % No
Real estate 5 0.429 % No
rent San 4 0.343 % No
rates New 4 0.343 % No
NYC apartments 4 0.343 % No
estate San 4 0.343 % No
Washington DC 4 0.343 % No
San Francisco 3 0.258 % No
City apartments 3 0.258 % No
CREA and 2 0.172 % No
San Antonio 2 0.172 % No
estate professionals 2 0.172 % No
and identify 2 0.172 % No
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Three Word Keywords
Keyword Occurrence Density Possible Spam
houses for rent 25 2.146 % No
apartments for rent 25 2.146 % No
submenu Chevron Down 6 0.515 % No
real estate San 4 0.343 % No
mortgage rates New 4 0.343 % No
NYC apartments for 4 0.343 % No
for rent San 4 0.343 % No
City apartments for 3 0.258 % No
Beach real estate 2 0.172 % No
brokerage licenses in 2 0.172 % No
Virginia mortgage rates 2 0.172 % No
Inc holds real 2 0.172 % No
mortgage rates South 2 0.172 % No
for rent Houston 2 0.172 % No
holds real estate 2 0.172 % No
real estate brokerage 2 0.172 % No
estate brokerage licenses 2 0.172 % No
licenses in multiple 2 0.172 % No
real estate professionals 2 0.172 % No
for rent Boston 2 0.172 % No
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Four Word Keywords
Keyword Occurrence Density Possible Spam
NYC apartments for rent 4 0.343 % No
City apartments for rent 3 0.258 % No
houses for rent San 3 0.258 % No
real estate professionals who 2 0.172 % No
real estate brokerage licenses 2 0.172 % No
estate brokerage licenses in 2 0.172 % No
brokerage licenses in multiple 2 0.172 % No
holds real estate brokerage 2 0.172 % No
for rent Washington DC 2 0.172 % No
for rent Oklahoma City 2 0.172 % No
estate professionals who are 2 0.172 % No
professionals who are members 2 0.172 % No
who are members of 2 0.172 % No
are members of CREA 2 0.172 % No
for rent San Francisco 2 0.172 % No
Inc holds real estate 2 0.172 % No
mortgage rates Maryland mortgage 1 0.086 % No
rates Maryland mortgage rates 1 0.086 % No
Maryland mortgage rates Maine 1 0.086 % No
mortgage rates Maine mortgage 1 0.086 % No
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Keyword Usage
The most using keywords do not match with meta keywords.

About this SEO factor:
Keyword usage is the using of your keywords inside Meta tags and contents of your website. Use keywords that describes your site properly for precise search engine result of your website.
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Total Words
Total Words : 1165

About this SEO factor:
Unique words are uncommon words that reflects your site features and informations. Search engine metrics are not intended to use unique words as ranking factor but it is still useful to get a proper picture of your site contents. Using positive unique words like complete, perfect, shiny, is a good idea user experience.

Stop words are common words like all the preposition, some generic words like download, click me, offer, win etc. since most used keyword may be a slight factor for visitors you are encouraged to use more unique words and less stop words.
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Text/HTML Ratio Test
Site failed text/HTML ratio test.

Text/HTML Ratio Test : 5%

About this SEO factor:
The ideal page's ratio of text to HTML code must be lie between 20 to 60%. Because if it is come less than 20% it means you need to write more text in your web page while in case of more than 60% your page might be considered as spam.
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HTML Headings

H1(0)

H2(0)

H3(0)

H4(0)

H5(0)

H6(0)



About this SEO factor:
1 status is the existence of any content inside h1 tag. Although not important like Meta titles and descriptions for search engine ranking but still a good way to describe your contents in search engine result.

h2 status less important but should be used for proper understanding of your website for visitor.
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robot.txt
Your site have robot.txt

robot.txt

# Access to and use of Zillow.com is governed by our Terms of Use. See http://www.zillow.com/corp/Terms.htm

User-agent: *
Disallow: /?url=
Disallow: /*_rect
Disallow: /*_rect/
Disallow: /*_rid
Disallow: /*_sort/
Disallow: /*.sdirect
Disallow: /*1_fs/
Disallow: /*3ab9b0d/
Disallow: /*3bec89b
Disallow: /*/_type/
Disallow: /*/0-0_beds/
Disallow: /*/admin-ajax.php
Disallow: /*/apartments-are_att/
Disallow: /*/apartments-madden_att/
Disallow: /*/apartments-offers_att/
Disallow: /*/apartments-rent_att/
Disallow: /*cbpartner=
Disallow: /*/CountyAssessorPage.htm?*
Disallow: /*/duplex-apartments_att/
Disallow: /*/floor-map-annotator/*
Disallow: /*/foreclosure--
Disallow: */foreclosed/*
Disallow: /*/GetResults.htm*
Disallow: /*/house_type/
Disallow: /*/house,apartment_duplex_type/
Disallow: /*/house,mobile_type/
Disallow: /*/house,mobile,land_type/
Disallow: /*/house,mobile,townhouse_type/
Disallow: /*/loft-apartments_att/
Disallow: /*/mostrecentchange_sort/
Disallow: /*/node_modules/.bin/
Disallow: /*/plus/
Disallow: /*/rent-house_att/
Disallow: /*/rino-_att/
Disallow: /*/qc/
Disallow: /*-qc/
Disallow: /*/townhome_att/
Disallow: /*/u1_sch/
Disallow: /*/z/internet-tv-deals-saver/?z*
Disallow: /*/z/internet-tv-deals-speed/?z*
Disallow: /*RentalConfirmedClaim
Disallow: /*?searchQueryState=*
Disallow: /ads/
Disallow: /advice-thread/
Disallow: /advicepages/
Disallow: /aerial/
Disallow: /advice/
Disallow: /agent-websites/
Disallow: /ajax/homedetail/CompareWithPublicFactsData.htm
Disallow: /ajax/homedetail/HomeValueChartData.htm
Disallow: /ajax/nav/UserNavAsync.htm?pageframe=true
Disallow: /ajax/rentals/ClaimedRentalProperties.htm?actionType=claims
Disallow: /ajax/ownerview/PerformSellerLeadContact.htm
Disallow: /ajax/ownerview/SellerLeadData.htm
Disallow: /app?
Disallow: /b/*/rental-manager/resources/
Disallow: /b/*bed*/
Disallow: /b/*month*/
Disallow: /b/*!*/
Disallow: /b/*(*/
Disallow: /b/*&*/
Disallow: /b/*/*_ll/
Disallow: /bal/impression/
Disallow: /bal/impression/RecordImpression.htm?
Disallow: /browse/homes/all/
Disallow: /captcha/
Disallow: /careers/apply/
Disallow: /careers/jobs/
Disallow: /claiming/
Disallow: /claiming/ClaimProperty.htm?
Disallow: /community/error-subdivision-name-unavailable/
Disallow: /contact/
Disallow: /corp/Privacy.htm
Disallow: /corp/Terms.htm
Disallow: /CountyAssessorPage.htm
Disallow: /del/
Disallow: /discovery/
Disallow: /editing/
Disallow: /email/EnrollmentUnsubscribe.htm
Disallow: /email/SubscriptionTypeUnsubscribe.htm 
Disallow: /email/Unsubscribe.htm
Disallow: /for-sale-by-owner/?zpid=
Disallow: /home-improvement-dueling-digs/
Disallow: /homedetail/AuthRequired.htm
Disallow: /homedetail/HomeDetail,*Border.*debug*DebugBar.*InspectorButton.link.sdirect
Disallow: /homedetails/*view=owner
Disallow: /homedetails/*/rental-manager/resources/
Disallow: /homeimprovement/EmbeddedProfile.htm
Disallow: /homepage/HomepageVideoMetrics.htm
Disallow: /homes/*+
Disallow: /homes/*_rb
Disallow: /homes/*_zpid/
Disallow: /homes/*mapBounds*
Disallow: /homes/com.zillow.service.search.SearchURLImpl
Disallow: /homes/comps_for_rent/
Disallow: /homes/comps_for_sale/
Disallow: /homes/comps/
Disallow: /homes/for_sale/*_agent_list/
Disallow: /homes/for_sale/1_favorite_list/1_rs/1_fr/
Disallow: /howto/GoodNeighborPolicy.htm
Disallow: /HYx10rg3/xhr/api/v1/collector
Disallow: /HYx10rg3/xhr/api/v2/collector
Disallow: /IMAGE
Disallow: /imf-fetch-message/api/v1/request/fetch-message/MOBILE_APP_UPSELL
Disallow: /instant-offers/version/
Disallow: /l/
Disallow: /learnmore/
Disallow: /license/
Disallow: /m/
Disallow: /make-me-move?zpid=
Disallow: /make-me-move/?zpid=
Disallow: /mobile/GetAdConfiguration.htm
Disallow: /mobile/MobilePropertyDetails.htm
Disallow: /mobile/WinmoPropertyDetails.htm
Disallow: /mobile/WPPropertyDetails.htm
Disallow: /mortgage/SmallMortgageLoanCalculatorWidget.htm
Disallow: /mortgage/MortgageCalculatorWidgetLarge.htm
Disallow: /mortgage/MortgageRateTable.htm
Disallow: /mortgage/widgets/AffordabilityCalculatorWidget.htm
Disallow: /mortgage/MortgageRateTableWidget.htm
Disallow: /mortgage/MortgageLoanCalculatorWidget.htm
Disallow: /mortgage/RateExplorerGraphWidget.htm
Disallow: /myzillow/
Disallow: /offers/request/
Disallow: /ofr/api/v3/questionnaire
Disallow: /pbflex/
Disallow: /personalization/
Disallow: /post-real-estate-listings?zpid=
Disallow: /post-real-estate-listings/?zpid=
Disallow: /post-rental-listings?zpid=
Disallow: /postings/
Disallow: /postings/PostForSale.htm?
Disallow: /postings/PostMakeMeMoveStreamlined.htm?
Disallow: */pre-foreclosure/*
Disallow: /pricing/
Disallow: /profile/*/Advice/
Disallow: /profile/*/Reviews-Written/
Disallow: /profile/*/photos/
Disallow: /profiles/ProfileBorderTemplate,*myzillow*MyListingsTabulated.*postings*owners*OwnersProfileUpsell.*DirectLink.sdirect
Disallow: /real-estate-listings
Disallow: /rental-manager/?source=topnav&itc=postbutton_topnav
Disallow: /rental-manager/?zpid=
Disallow: /rental-manager/properties?postingPath=true
Disallow: /rental-manager/properties/?source=*
Disallow: /rental-manager/r/
Disallow: /rentals/
Disallow: /rentalsrevenue/
Disallow: /rentalsrevenue/resume/UpdatePasswordInline*
Disallow: /renter-hub/
Disallow: /research/monthly-reports/
Disallow: /reviews/write?s=
Disallow: /reviews/write/?s=
Disallow: /routing/email/
Disallow: /s/
Disallow: /savedhomes/
Disallow: /schools/TestHistoryAsync.htm
Disallow: /search/browse/HDPTree,*Border.*debug*DebugBar.*InspectorButton.link.sdirect
Disallow: /search/HDPMapResults.htm
Disallow: /search/SavedSearchLightboxContent.htm
Disallow: /showcase/Click.htm?
Disallow: /sitemap/catalog/hdp/
Disallow: /trk/
Disallow: /ui/
Disallow: /url-shortner/
Disallow: /user/account/SaveSearchOptions.htm
Disallow: /user/account/services/
Disallow: /user/account/services/WhoAmI.htm
Disallow: /user/acct/login/
Disallow: /user/InlineLogin.htm?
Disallow: /user/Login
Disallow: /user/Register
Disallow: /util/ClientLogger.htm
Disallow: /videodetails/
Disallow: /walkscore/
Disallow: /webservice/
Disallow: /webtools/
Disallow: /widgets/
Disallow: /wikipages/
Disallow: /ajax/profile-broker-website 
Disallow: /agent-resources/zgwp/app/themes/paxl/assets/fonts/stargate.ttf
Disallow: /my-agent/eligibility*
Disallow: /jsonp/Bdp.htm?*
Disallow: /ajax/homedetail/MarkPropertyViewed*
Disallow: /wiki/Help*
Disallow: */allunits/*
Disallow: /reviews/batch-request/
Disallow: /myzillow/ChangePassword.htm
Disallow: /editing/EditHomeFacts.htm
Disallow: /community/error-subdivision-name-unavailable/
Disallow: /user/account/
Disallow: /user/InlineLogin.htm
Disallow: /reviews/request/
Disallow: /CountyAssessorPage.htm
Disallow: /error/PageNotFound.htm
Disallow: /mortgage/MortgageRateTableWidget.htm
Disallow: /imf-fetch-message/*
Disallow: /app$
Disallow: /*/node_modules/.bin/jest
Disallow: /view-3d-home
Disallow: /b/*/*_p/

User-agent: Mediapartners-Google
Disallow: /*?searchQueryState=*

User-agent: AdsBot-Google-Mobile
Disallow: /*?searchQueryState=*

User-agent: AdsBot-Google
Disallow: /*?searchQueryState=*

Sitemap: https://mortgageapi.zillow.com/sitemap.xml
Sitemap: https://www.zillow.com/sitemap/catalog/cdp/index.xml
Sitemap: https://www.zillow.com/sitemap/catalog/sitemap.xml
Sitemap: https://www.zillow.com/sitemap/xml/index.xml
Sitemap: https://www.zillow.com/sitemap/xml/srp-index.xml


About this SEO factor:
robots.txt is text file that reside on website root directory and contains the instruction for various robots (mainly search engine robots) for how to crawl and indexing your website for their webpage. robots.txt contains the search bots or others bots name, directory list allowed or disallowed to be indexing and crawling for bots, time delay for bots to crawl and indexing and even the sitemap url. A full access or a full restriction or customized access or restriction can be imposed through robots.txt.

robots.txt is very important for SEO. Your website directories will be crawled and indexed on search engine according to robots.txt instructions. So add a robots.txt file in your website root directory. Write it properly including your content enriched pages and other public pages and exclude any pages which contain sensitive information. Remember robots.txt instruction to restrict access to your sensitive information of your page is not formidable on web page security ground. So do not use it on security purpose.
Learn more
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Sitemap
Your site have sitemap
Location: https://mortgageapi.zillow.com/sitemap.xml

About this SEO factor:
Sitemap is a xml file which contain full list of your website urls. It is used to include directories of your websites for crawling and indexing for search engine and access for users. it can help search engine robots for indexing your website more fast and deeply. It is roughly an opposite of robots.txt, You can create a sitemap.xml by various free and paid service or you can write it with proper way (read about how write a sitemap).

Also keep these things in mind:
1) Sitemap must be less than 10 MB (10,485,760 bytes) and can contain maximum 50,000 urls. if you have more uls than this create multiple sitemap files and use a sitemap index file.
2) Put your sitemap in website root directory and add the url of your sitemap in robots.txt.
3) sitemap.xml can be compressed using grip for faster loading.

Broken link: a broken link is an inaccessible link or url of a website. a higher rate of broken links have a negative effect on search engine ranking due to reduced link equity. it also has a bad impact on user experience. There are several reasons for broken link. All are listed below.
1) An incorrect link entered by you.
2) The destination website removed the linked web page given by you. (A common 404 error).
3) The destination website is irreversibly moved or not exists anymore. (Changing domain or site blocked or dysfunctional).
4) User may behind some firewall or alike software or security mechanism that is blocking the access to the destination website.
5) You have provided a link to a site that is blocked by firewall or alike software for outside access.
Learn more or Learn more
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Internal Vs. External Links
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NoIndex , NoFollow, DoDollow Links
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SEO Friendly Links
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Favicon
Your site does not have favicon.

Learn more
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Image 'alt' Test
Your site does not have any image without alt text.

About this SEO factor:
An alternate title for image. Alt attribute content to describe an image. It is necessary for notifying search engine spider and improve actability to your website. So put a suitable title for your image at least those are your website content not including the images for designing your website. To resolve this put a suitable title in your alt attributes.
Learn more
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DOC Type
DOC Type :


Page do not have doc type

About this SEO factor:
doc type is not SEO factor but it is checked for validating your web page. So set a doctype at your html page.
Learn more
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Depreciated HTML Tag
Your site does not have any depreciated HTML tag.

About this SEO factor:
Older HTML tags and attributes that have been superseded by other more functional or flexible alternatives (whether as HTML or as CSS ) are declared as deprecated in HTML4 by the W3C - the consortium that sets the HTML standards. Browsers should continue to support deprecated tags and attributes, but eventually these tags are likely to become obsolete and so future support cannot be guaranteed.
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HTML Page Size
HTML Page Size : 187 KB


HTML page size is > 100KB

About this SEO factor:
HTML page size is the one of the main factors of webpage loading time. It should be less than 100 KB according to google recommendation. Note that, this size not including external css, js or images files. So small page size less loading time.

To reduce your page size do this steps
1) Move all your css and js code to external file.
2) make sure your text content be on top of the page so that it can displayed before full page loading.
3) Reduce or compress all the image, flash media file etc. will be better if these files are less than 100 KB
Learn more
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GZIP Compression
GZIP Compressed Size : 42 KB

GZIP compression is enabled.GZIP compressed size should be < 33KB

About this SEO factor:
GZIP is a generic compressor that can be applied to any stream of bytes: under the hood it remembers some of the previously seen content and attempts to find and replace duplicate data fragments in an efficient way - for the curious, great low-level explanation of GZIP. However, in practice, GZIP performs best on text-based content, often achieving compression rates of as high as 70-90% for larger files, whereas running GZIP on assets that are already compressed via alternative algorithms (e.g. most image formats) yields little to no improvement. It is also recommended that, GZIP compressed size should be <=33 KB
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Inline CSS
Your site does not have any inline css.

About this SEO factor:
Inline css is the css code reside in html page under html tags not in external .css file. Inline css increases the loading time of your webpage which is an important search engine ranking factor. So try not to use inline css.
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Internal CSS
Your site does not have any internal css.

About this SEO factor:
Internal css is the css codes which resides on html page inside style tag. Internal css is increases loading time since no page caching is possible for internal css. Try to put your css code in external file.
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Micro Data Schema Test
Site failed micro data schema test.

About this SEO factor:
Micro data is the information underlying a html string or paragraph. Consider a string “Avatar”, it could refer a profile picture on forum, blog or social networking site or may it refer to a highly successful 3D movie. Microdot is used to specify the reference or underlying information about an html string. Microdata gives chances to search engine and other application for better understanding of your content and better display significantly on search result.
Learn more
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IP Canonicalization Test
Site failed IP canonicalization test.

About this SEO factor:
If multiple domain name is registered under single ip address the search bots can label other sites as duplicates of one sites. This is ip canonicalization. Little bit like url canonicalizaion. To solve this use redirects.
Learn more
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URL Canonicalization Test
Site passed URL canonicalization test.

About this SEO factor:
Canonical tags make your all urls those lead to a single address or webpage into a single url. Like :
<link rel="canonical" href="https://mywebsite.com/home" />
<link rel="canonical" href="https://www.mywebsite.com/home" />
Both refer to the link mywebsite.com/home. So all the different url with same content or page now comes under the link or url mywebsite.com/home. Which will boost up your search engine ranking by eliminating content duplication. Use canonical tag for all the same urls.
Learn more
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Plain Text Email Test
Site failed plain text email test.2plain text email found.

Plain Text Email List

  • _Mobile_Overlay_ReadyChange_HC@2x.jpg
  • _Desktop_Overlay_ReadyChange_HC@2x.jpg


About this SEO factor:
Plain text email address is vulnerable to email scrapping agents. An email scrapping agent crawls your website and collects every Email address which written in plain text. So existence of plain text email address in your website can help spammers in email Harvesting. This could be a bad sign for search engine.

To fight this you can obfuscate your email addresses in several ways:
1) CSS pseudo classes.
2) Writing backward your email address.
3) Turn of display using css.
4) Obfuscate your email address using javascript.
5) Using wordpress and php (wordpress site only).
Learn more
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Keep request counts low and transfer sizes small
Keep request counts low and transfer sizes small :
DESKTOP 204 requests • 1,155 KiB

MOBILE 201 requests • 1,322 KiB


About this SEO factor:
To set budgets for the quantity and size of page resources, add a budget.json file. Learn More
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Eliminate render-blocking resources
Eliminate render-blocking resources :
MOBILE

DESKTOP


About this SEO factor:
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. Learn More
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Serve static assets with an efficient cache policy
Serve static assets with an efficient cache policy :
MOBILE 10 resources found

DESKTOP 10 resources found


About this SEO factor:
A long cache lifetime can speed up repeat visits to your page. Learn More
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Reduce the impact of third-party code
Reduce the impact of third-party code :
MOBILE Third-party code blocked the main thread for 300 ms

DESKTOP Third-party code blocked the main thread for 0 ms


About this SEO factor:
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn More
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Estimated Input Latency
Estimated Input Latency :
MOBILE 210 ms

DESKTOP 20 ms


About this SEO factor:
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy. Learn More
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First Contentful Paint (3G)
First Contentful Paint (3G) :
MOBILE 4860 ms

DESKTOP


About this SEO factor:
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network. Learn More
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First Meaningful Paint
First Meaningful Paint :
MOBILE 2.4 s

DESKTOP 0.6 s


About this SEO factor:
First Meaningful Paint measures when the primary content of a page is visible. Learn More
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Total Blocking Time
Total Blocking Time :
MOBILE 2,160 ms

DESKTOP 130 ms


About this SEO factor:
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn More
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Efficiently encode images
Efficiently encode images :
MOBILE Potential savings of 235 KiB

DESKTOP Potential savings of 161 KiB


About this SEO factor:
Optimized images load faster and consume less cellular data. Learn More
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Reduce JavaScript execution time
Reduce JavaScript execution time :

About this SEO factor:
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn More
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Enable text compression
Enable text compression :
MOBILE

DESKTOP


About this SEO factor:
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. Learn More
green
3
check
Defer offscreen images
Defer offscreen images :
MOBILE

DESKTOP


About this SEO factor:
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. Learn More
green
3
check
Server Backend Latencies
Server Backend Latencies :
MOBILE 0 ms

DESKTOP 0 ms


About this SEO factor:
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance. Learn More
green
3
check
Properly size images
Properly size images :
DESKTOP Potential savings of 106 KiB

MOBILE Potential savings of 40 KiB


About this SEO factor:
Serve images that are appropriately-sized to save cellular data and improve load time. Learn More
green
3
check
Remove unused CSS
Remove unused CSS :
MOBILE

DESKTOP


About this SEO factor:
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity. Learn More
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2
exclamation-circle
Avoids enormous network payloads
Avoids enormous network payloads :
MOBILE Total size was 1,322 KiB

DESKTOP Total size was 1,155 KiB


About this SEO factor:
Large network payloads cost users real money and are highly correlated with long load times. Learn More
red
1
remove
Minimize main-thread work
Minimize main-thread work :
MOBILE 6.1 s

DESKTOP 1.2 s


About this SEO factor:
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn More
green
3
check
Serve images in next-gen formats
Serve images in next-gen formats :
MOBILE Potential savings of 385 KiB

DESKTOP Potential savings of 288 KiB


About this SEO factor:
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. Learn More
green
3
check
Avoid chaining critical requests
Avoid chaining critical requests :
MOBILE

DESKTOP


About this SEO factor:
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load. Learn More
red
1
remove
Avoid an excessive DOM size
Avoid an excessive DOM size :
MOBILE 1,230 elements

DESKTOP 1,198 elements


About this SEO factor:
A large DOM will increase memory usage, cause longer Learn More
green
3
check
Avoid multiple page redirects
Avoid multiple page redirects :
MOBILE

DESKTOP


About this SEO factor:
Redirects introduce additional delays before the page can be loaded. Learn More
green
3
check
Minify JavaScript
Minify JavaScript :
MOBILE

DESKTOP


About this SEO factor:
Minifying JavaScript files can reduce payload sizes and script parse time. Learn More
red
1
remove
User Timing marks and measures
User Timing marks and measures :
MOBILE 13 user timings

DESKTOP 10 user timings


About this SEO factor:
Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences. Learn More
green
3
check
Network Round Trip Times
Network Round Trip Times :
MOBILE 0 ms

DESKTOP 0 ms


About this SEO factor:
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance. Learn More
red
1
remove
Avoid `document.write()`
Avoid `document.write()` :

About this SEO factor:
For users on slow connections, external scripts dynamically injected via `document.write()` can delay page load by tens of seconds. Learn More
yellow
2
exclamation-circle
Avoid large layout shifts
Avoid large layout shifts :

About this SEO factor:
These DOM elements contribute most to the CLS of the page.Learn More
red
1
remove
Ensure text remains visible during webfont load
Ensure text remains visible during webfont load :

About this SEO factor:
Leverage the font-display CSS feature to ensure text is user-visible while webfonts are loading. Learn More
green
3
check
Minify CSS
Minify CSS :
MOBILE

DESKTOP


About this SEO factor:
Minifying CSS files can reduce network payload sizes. Learn More
green
3
check
Use video formats for animated content
Use video formats for animated content :

About this SEO factor:
Large GIFs are inefficient for delivering animated content. Consider using MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF to save network bytes. Learn More
green
3
check
Remove unused JavaScript
Remove unused JavaScript :
MOBILE Potential savings of 147 KiB

DESKTOP Potential savings of 82 KiB


About this SEO factor:
Remove unused JavaScript to reduce bytes consumed by network activity. Learn More
green
3
check
Preload key requests
Preload key requests :

About this SEO factor:
Consider using `` to prioritize fetching resources that are currently requested later in page load. Learn More
green
3
check
Initial server response time was short
Initial server response time was short :
MOBILE Root document took 140 ms

DESKTOP Root document took 150 ms


About this SEO factor:
Keep the server response time for the main document short because all other requests depend on it. Learn More
green
3
check
Preconnect to required origins
Preconnect to required origins :

About this SEO factor:
Consider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. Learn More
green
3
check
Remove duplicate modules in JavaScript bundles
Remove duplicate modules in JavaScript bundles :
MOBILE

DESKTOP


About this SEO factor:
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
red
1
remove
Avoid long main-thread tasks
Avoid long main-thread tasks :
MOBILE 20 long tasks found

DESKTOP 5 long tasks found


About this SEO factor:
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. Learn More
blue-dark
4
info-circle
cURL Response
urlhttps://www.zillow.com/content typetext/html; charset=utf-8
http code200header size736
request size132filetime-1
ssl verify result0redirect count0
total time0.208215namelookup time0.028518
connect time0.030367pretransfer time0.047767
size upload0size download191144
speed download918012speed upload0
download content length191144upload content length-1
starttransfer time0.203544redirect time0
redirect urlprimary ip13.32.202.43
certinfoprimary port443
local ip173.236.198.197local port34968
http version2protocol2
ssl verifyresult0schemeHTTPS
blue-dark
4
info-circle
Alexa Rank
Traffic Rank 116
Reach Rank 136
Top Country United States
Top Country Rank 20
blue-dark
4
info-circle
Domain IP Information
ISP Amazon CloudFront
IP 65.9.7.27
Organization Amazon CloudFront
City Orlando
Country United States
Time Zone America/New_York
Longitude -81.406100
Latitude 28.488300
blue-dark
4
info-circle
IP & DNS Report
IPv4 204.246.190.45
IPv6 Not Compatiable
DNS Report
SLHostClassTTLTypePRITargetIP
1www.zillow.comIN900A204.246.190.12
2www.zillow.comIN900A204.246.190.111
3www.zillow.comIN900A204.246.190.83
4www.zillow.comIN900A204.246.190.45
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Tabbing through the page follows the visual layout. Users cannot focus elements that are offscreen. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Users do not expect a page to refresh automatically, and doing so will move focus back to the top of the page. This may create a frustrating or confusing experience. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Landmark elements are used to improve the keyboard navigation of the page for assistive technology. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Assistive technologies, like screen readers, work inconsistently when aria-hidden=true is set on the document. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
A user can tab into and out of any control or region without accidentally trapping their focus. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
When an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Specifying a valid language helps screen readers announce text properly. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
If a page doesn't specify a lang attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Custom interactive controls are keyboard focusable and display a focus indicator. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
The value of an ARIA ID must be unique to prevent other instances from being overlooked by assistive technologies. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid names. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Access keys let users quickly focus a part of the page. For proper navigation, each access key must be unique. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Form fields with multiple labels can be confusingly announced by assistive technologies like screen readers which use either the first, the last, or all of the labels. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Specifying a valid BCP 47 language on elements helps ensure that text is pronounced correctly by a screen reader. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Focusable descendents within an aria-hidden=true element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
When an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
When a toggle field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
When a progressbar element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Some ARIA roles have required attributes that describe the state of the element to screen readers. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Interactive elements, such as links and buttons, should indicate their state and be distinguishable from non-interactive elements. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Custom interactive controls have associated labels, provided by aria-label or aria-labelledby. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Custom interactive controls have appropriate ARIA roles. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Offscreen content is hidden with display: none or aria-hidden=true. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
When an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Screen readers have features to make navigating tables easier. Ensuring table headers always refer to some set of cells may improve the experience for screen reader users. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
When an input field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Definition list items must be wrapped in a parent element to ensure that screen readers can properly announce them. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Adding ways to bypass repetitive content lets keyboard users navigate the page more efficiently. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
ARIA roles must have valid values in order to perform their intended accessibility functions. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
When an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
DOM order matches the visual order, improving navigation for assistive technology. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
When an image is being used as button, providing alternative text can help screen reader users understand the purpose of the button. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
If new content, such as a dialog, is added to the page, the user's focus is directed to it. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
These checks highlight opportunities to improve the accessibility of your web app. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Users are mistrustful of or confused by sites that request their location without context. Consider tying the request to a user action instead. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
The unload event does not fire reliably and listening for it can prevent browser optimizations like the Back-Forward Cache. Consider using the pagehide or visibilitychange events instead. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Users are mistrustful of or confused by sites that request to send notifications without context. Consider tying the request to user gestures instead. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Preload optional fonts so first-time visitors may use them. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
A strong Content Security Policy (CSP) significantly reduces the risk of cross-site scripting (XSS) attacks. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
This is a screengrab of what this page looks like on desktop computers.
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Application Cache is deprecated. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Specifying a doctype prevents the browser from switching to quirks-mode. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Deprecated APIs will eventually be removed from the browser. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Deprecated APIs will eventually be removed from the browser. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
A character encoding declaration is required. It can be done with a tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Preventing password pasting undermines good security policy. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Add rel=noopener or rel=noreferrer to any external links to improve performance and prevent security vulnerabilities. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Image display dimensions should match natural aspect ratio. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report : About this SEO factor:
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn More
yellow
2
exclamation-circle
IP & DNS Report
IP & DNS Report :
blue-dark
4
info-circle
final-screenshot
final-screenshot :
blue-dark
4
info-circle
non-composited-animations
non-composited-animations : About this SEO factor:
Animations which are not composited can be janky and increase CLS. Learn More
blue-dark
4
info-circle
max-potential-fid
max-potential-fid : About this SEO factor:
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn More
Maximum Potential First Input Delay: 90 ms
blue-dark
4
info-circle
metrics
metrics :
Observed Load Ts: 968244181151
Observed First Contentful Paint Ts: 968243859225
Observed Speed Index: 558
Observed Load: 583
Observed Largest Contentful Paint: 590
First Meaningful Paint: 629
Observed Dom Content Loaded: 325
Observed Trace End: 2508
Observed Cumulative Layout Shift: 0.071937854828824
Observed Navigation Start Ts: 968243598624
Observed Trace End Ts: 968246106424
Observed First Paint Ts: 968243859225
Total Blocking Time: 82
Observed Largest Contentful Paint Ts: 968244188887
Observed First Meaningful Paint: 261
Observed First Contentful Paint: 261
Observed Navigation Start: 0
Observed Last Visual Change: 1653
Observed Time Origin Ts: 968243598624
Observed Time Origin: 0
Observed First Paint: 261
Max Potential FID: 87
Observed First Visual Change: 253
Cumulative Layout Shift: 0.071937854828824
Observed First Visual Change Ts: 968243851624
Interactive: 1491
Observed First Meaningful Paint Ts: 968243859225
Speed Index: 689
Observed Last Visual Change Ts: 968245251624
Largest Contentful Paint: 1390
Observed Dom Content Loaded Ts: 968243923618
Observed Speed Index Ts: 968244156517
First Contentful Paint: 629
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Tabbing through the page follows the visual layout. Users cannot focus elements that are offscreen. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Users do not expect a page to refresh automatically, and doing so will move focus back to the top of the page. This may create a frustrating or confusing experience. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Landmark elements are used to improve the keyboard navigation of the page for assistive technology. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Assistive technologies, like screen readers, work inconsistently when aria-hidden=true is set on the document. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
A user can tab into and out of any control or region without accidentally trapping their focus. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
When an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Specifying a valid language helps screen readers announce text properly. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
If a page doesn't specify a lang attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Custom interactive controls are keyboard focusable and display a focus indicator. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
The value of an ARIA ID must be unique to prevent other instances from being overlooked by assistive technologies. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid names. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Access keys let users quickly focus a part of the page. For proper navigation, each access key must be unique. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Form fields with multiple labels can be confusingly announced by assistive technologies like screen readers which use either the first, the last, or all of the labels. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Specifying a valid BCP 47 language on elements helps ensure that text is pronounced correctly by a screen reader. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Focusable descendents within an aria-hidden=true element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
When an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
When a toggle field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
When a progressbar element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Some ARIA roles have required attributes that describe the state of the element to screen readers. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Interactive elements, such as links and buttons, should indicate their state and be distinguishable from non-interactive elements. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Custom interactive controls have associated labels, provided by aria-label or aria-labelledby. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Custom interactive controls have appropriate ARIA roles. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Offscreen content is hidden with display: none or aria-hidden=true. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
When an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Screen readers have features to make navigating tables easier. Ensuring table headers always refer to some set of cells may improve the experience for screen reader users. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
When an input field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Definition list items must be wrapped in a parent element to ensure that screen readers can properly announce them. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Adding ways to bypass repetitive content lets keyboard users navigate the page more efficiently. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
ARIA roles must have valid values in order to perform their intended accessibility functions. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
When an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
DOM order matches the visual order, improving navigation for assistive technology. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
When an image is being used as button, providing alternative text can help screen reader users understand the purpose of the button. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
If new content, such as a dialog, is added to the page, the user's focus is directed to it. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
These checks highlight opportunities to improve the accessibility of your web app. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Add rel="noopener" or rel="noreferrer" to any external links to improve performance and prevent security vulnerabilities. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
A strong Content Security Policy (CSP) significantly reduces the risk of cross-site scripting (XSS) attacks. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Specifying a doctype prevents the browser from switching to quirks-mode. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
All front-end JavaScript libraries detected on the page. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Application Cache is deprecated. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content Learn More, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Users are mistrustful of or confused by sites that request their location without context. Consider tying the request to a user action instead. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Image display dimensions should match natural aspect ratio. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
The unload event does not fire reliably and listening for it can prevent browser optimizations like the Back-Forward Cache. Consider using the pagehide or visibilitychange events instead. Learn More
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Issues logged to the Issues panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.
yellow
2
exclamation-circle
metrics
metrics : About this SEO factor:
Deprecated APIs will eventually be removed from the browser. Learn More
green
3
check
third-party-summary
third-party-summary : About this SEO factor:
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn More
Third-party code blocked the main thread for 180 ms
Wasted Miliseconds: 179.956
Wasted Bytes: 430500
80597107.14438.7689835042.66172.5482145330.156104.332516610271.42445518043.72421078064.7521944800152070102.42414030034.2049728020.1046999025.7566944016.7446593032.9564175018.3482516002276002095001782001758001584001515001511001510001350001284001136001120001021001017008990069000672006290060400470003860035300306010.05623500
Text URL Type Transfer Size Blocking Time Main Thread Time
Google Tag Managerhttps://marketingplatform.google.com/about/tag-manager/link
Facebookhttps://www.facebook.comlink
Google Analyticshttps://www.google.com/analytics/analytics/link
Google/Doubleclick Adshttps://www.doubleclickbygoogle.com/link
Other Google APIs/SDKshttps://developers.google.com/apis-explorer/#p/link
Pinteresthttps://pinterest.com/link
Google Fontshttps://fonts.google.com/link
Amazon Adshttps://ad.amazon.com/link
Yahoo!https://www.yahoo.com/link
Bing Adshttps://bingads.microsoft.comlink
Jivoxlink
Twitter Online Conversion Trackinglink
The Trade Deskhttps://www.thetradedesk.com/link
Scorecard Researchhttps://www.scorecardresearch.com/link
Tapadlink
Adobe Tag Managerhttps://www.adobe.com/experience-platform/link
BlueKailink
eXelatelink
Xaxishttps://www.xaxis.com/link
Salesforcehttps://www.salesforce.com/products/marketing-cloud/link
Index Exchangelink
AOL / Oath / Verizon Mediahttps://www.oath.com/link
Burst Medialink
Rubicon Projecthttps://rubiconproject.com/link
SpotXchangelink
Sizmekhttps://www.sizmek.com/link
Adformlink
OpenXhttps://www.openx.com/link
Pubmatichttps://pubmatic.com/link
Samba TVlink
AppNexushttps://www.appnexus.com/link
Aggregate Knowledgelink
Unruly Medialink
StickyADS.tvlink
Taboolahttps://www.taboola.com/link
Visual IQhttps://www.visualiq.comlink
BrightTag / Signalhttps://www.signal.colink
Twitterhttps://twitter.comlink
Bidswitchhttps://www.bidswitch.com/link
blue-dark
4
info-circle
metrics
metrics :
Observed Load Ts: 2018435284832
Observed First Contentful Paint Ts: 2018434828830
Observed Speed Index: 613
Observed Load: 718
Observed Largest Contentful Paint: 744
First Meaningful Paint: 2399
Observed Dom Content Loaded: 323
Observed Trace End: 2859
Observed Cumulative Layout Shift: 0.189640625
Observed Navigation Start Ts: 2018434566665
Observed Trace End Ts: 2018437425531
Observed First Paint Ts: 2018434828830
Total Blocking Time: 1560
Observed Largest Contentful Paint Ts: 2018435310277
Observed First Meaningful Paint: 303
Observed First Contentful Paint: 262
Observed Navigation Start: 0
Observed Last Visual Change: 1659
Observed Time Origin Ts: 2018434566665
Observed Time Origin: 0
Observed First Paint: 262
Max Potential FID: 303
Observed First Visual Change: 259
Cumulative Layout Shift: 0.189640625
Observed First Visual Change Ts: 2018434825665
Interactive: 10767
Observed First Meaningful Paint Ts: 2018434869779
Speed Index: 2514
Observed Last Visual Change Ts: 2018436225665
Largest Contentful Paint: 7920
Observed Dom Content Loaded Ts: 2018434889424
Observed Speed Index Ts: 2018435179862
First Contentful Paint: 2160
blue-dark
4
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final-screenshot
final-screenshot :
blue-dark
4
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non-composited-animations
non-composited-animations : About this SEO factor:
Animations which are not composited can be janky and increase CLS. Learn More
blue-dark
4
info-circle
max-potential-fid
max-potential-fid : About this SEO factor:
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn More
Maximum Potential First Input Delay: 300 ms
yellow
2
exclamation-circle
max-potential-fid
max-potential-fid : About this SEO factor:
hreflang links tell search engines what version of a page they should list in search results for a given language or region. Learn More
yellow
2
exclamation-circle
max-potential-fid
max-potential-fid : About this SEO factor:
Add a <meta name="viewport"> tag to optimize your app for mobile screens. not only optimizes your app for mobile screen sizes, but also prevents a 300 millisecond delay to user input. Learn More
yellow
2
exclamation-circle
max-potential-fid
yellow
2
exclamation-circle
max-potential-fid
max-potential-fid : About this SEO factor:
Meta descriptions may be included in search results to concisely summarize page content. Learn More
yellow
2
exclamation-circle
max-potential-fid
max-potential-fid : About this SEO factor:
Search engines can't index plugin content, and many devices restrict plugins or don't support them. Learn More
yellow
2
exclamation-circle
max-potential-fid
yellow
2
exclamation-circle
max-potential-fid
max-potential-fid : About this SEO factor:
Search engines are unable to include your pages in search results if they don't have permission to crawl them. Learn More
yellow
2
exclamation-circle
max-potential-fid
max-potential-fid : About this SEO factor:
Search engines may use href attributes on links to crawl websites. Ensure that the href attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn More
yellow
2
exclamation-circle
max-potential-fid
max-potential-fid : About this SEO factor:
Pages with unsuccessful HTTP status codes may not be indexed properly. Learn More
yellow
2
exclamation-circle
max-potential-fid
max-potential-fid : About this SEO factor:
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn More
yellow
2
exclamation-circle
max-potential-fid
max-potential-fid : About this SEO factor:
Font sizes less than 12px are too small to be legible and require mobile visitors to pinch to zoom in order to read. Strive to have > 60% of page text at least 12px. Learn More
yellow
2
exclamation-circle
max-potential-fid
max-potential-fid : About this SEO factor:
Run the Structured Data Testing Tool. Learn More
yellow
2
exclamation-circle
max-potential-fid
max-potential-fid : About this SEO factor:
If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. Learn More
yellow
2
exclamation-circle
max-potential-fid
max-potential-fid : About this SEO factor:
Interactive elements like buttons and links should be large enough (48x48px), and have enough space around them, to be easy enough to tap without overlapping onto other elements. Learn More
yellow
2
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max-potential-fid
max-potential-fid : About this SEO factor:
This is a screengrab of what this page looks like on mobile devices.
yellow
2
exclamation-circle
max-potential-fid
max-potential-fid : About this SEO factor:
This is a screengrab of what this page looks like on desktop computers.

Performance Metrics

The following metrics are generated using performance data.

Overall Performance Score: 0.95

First Contentful Paint

First Contentful Paint marks the time at which the first text or image is painted onto your page. A good user experience is 0.9s or less. 2.2 s DESKTOP 0.6 s Score: 0.99 Learn More

Excellent!
0.6s

Time to Interactive

Time to interactive is the amount of time it takes for the page to become fully interactive. A good user experience is 2.5s or less. 11.0 s DESKTOP 2.3 s Learn More

Excellent!
1.5s

Speed Index

Speed Index shows how quickly the contents of a page are visibly populated. A good user experience is 1.3s or less. 2.3 s DESKTOP 0.7 s Score: 1 Learn More

NA - No data
0.7s

Total Blocking Time

How much time is blocked by scripts during your page loading process or the sum of all time periods between FCP and Time to Interactive. A good user experience is 150ms or less. Learn More

Excellent!
80ms

Largest Contentful Paint

Largest Contentful Paint marks how long it takes for the largest element of content (e.g. a hero image) to be painted on your page. A good user experience is 1.2s or less. Learn more.

OK, but consider improvement
1.4s

Cumulative Layout Shift

Cumulative Layout Shift measures the movement of visible elements within the viewport or how much your page's layout shifts as it loads. A good user experience is a score of 0.1 or less. Learn More

Excellent!
0.072

Total Page Size - 1.1 MB

JS
497.6 KB

JavaScript

IMG
470.5 KB

Images

Other
92.9 KB

Other

HTML

Fonts

CSS Stylesheets

Media

Total Page Requests - 198

JS
18.69%

JavaScript

IMG
33.84%

Images

Other
40.91%

Other

HTML
4.55%

HTML

Font
1.52%

Fonts

CSS
0.51%

CSS Stylesheets

Video
0.00%

Media

HTML
JS
CSS
IMG
Video
Font
Other

Response Codes:

Response Code Responses
200 120
-1 7
302 62
204 8
301 1
303 1

  • Lab Data
  • First Meaningful Paint 2.4 s DESKTOP 0.6 s
    ID: first-meaningful-paint
    Title: First Meaningful Paint
    Description: First Meaningful Paint measures when the primary content of a page is visible. [Learn more](https://web.dev/first-meaningful-paint/).
    Score: 0.99
    Score Display Mode: numeric
    Display Value: 0.6 s
    Numeric Value: 629
  • Max Potential First Input Delay 410 ms DESKTOP 130 ms

    Audits - Max-Potential FID

    ID: max-potential-fid
    Title: Max Potential First Input Delay
    Description: The maximum potential First Input Delay that your users could experience is the duration of the longest task. [Learn more](https://web.dev/lighthouse-max-potential-fid/).
    Score: 0.98
    Score Display Mode: numeric
    Display Value: 90 ms
    Numeric Value: 87

Audits - Uses Long Cache TTL

Serve static assets with an efficient cache policy
A long cache lifetime can speed up repeat visits to your page. Learn more
Score: 0.47
10 resources found
URL
1 https://spl.zeotap.com/?zdid=1353&env=mWeb&eventType=pageview&redir=ht... 0.00 hours 0.001 MB 0
2 https://s.amazon-adsystem.com/iu3 0.00 hours 0.000 MB 0
3 https://www.zillow.com/HYx10rg3/init.js 0.17 hours 0.029 MB 0.08
4 https://connect.facebook.net/signals/config/547145892064117?v=2.9.33&r... 0.33 hours 0.070 MB 0.12
5 https://connect.facebook.net/en_US/fbevents.js 0.33 hours 0.024 MB 0.12
6 https://s.yimg.com/wi/ytc.js 1.00 hours 0.006 MB 0.2
7 https://www.google-analytics.com/analytics.js 2.00 hours 0.019 MB 0.25
8 https://s.pinimg.com/ct/core.js 2.00 hours 0.001 MB 0.25
9 https://e.zg-api.com/a/z/js/v1/analytics.js?v=bcf290c 24.00 hours 0.014 MB 0.6
10 https://s.pinimg.com/ct/lib/main.2a04f3ee.js 336.00 hours 0.017 MB 0.9
0.14 MB





Results

Results - Audits

SI (Speed Index) MS 15%: 689
LCP (Largest Contentful Paint) MS 25%: 1390
TTI (Time to Interactive) MS 15%: 1491
TBT (Total Blocking Time) MS 25%: 82
CLS (Cumulative Layout Shift) MS 5%: 0.0719

Audits - Uses Optimized Images

ID: uses-optimized-images
Title: Efficiently encode images
Description: Optimized images load faster and consume less cellular data. [Learn more](https://web.dev/uses-optimized-images/).
Score: 0.88
Score Display Mode: numeric
Display Value: Potential savings of 161 KiB
Numeric Value: 150

Audits - Uses Optimized Images - Overall Savings Bytes

Overall Savings Bytes: 165367
Overall Savings (ms): 150
Type: opportunity

Audits - Uses Optimized Images - Details

Data:
  url: https://www.zillowstatic.com/s3/homepage/static/_Desktop_Overlay_ReadyChange_HC.jpg
  wastedBytes: 165367
  fromProtocol: 1
  isCrossOrigin: 1
  totalBytes: 326800

Audits - Third-Party Summary

ID: third-party-summary
Title: Minimize third-party usage
Description: Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. [Learn more](https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/loading-third-party-javascript/).
Score: 1
Score Display Mode: binary
Display Value: Third-party code blocked the main thread for 0 ms

Item Detail:
   Text: Facebook
   URL: https://www.facebook.com
   Type: link
   Main Thread Time: 41.354
   Transfer Size: 99348
   Blocking Time: 0
Item Detail:
   Text: Google Tag Manager
   URL: https://marketingplatform.google.com/about/tag-manager/
   Type: link
   Main Thread Time: 120.869
   Transfer Size: 80597
   Blocking Time: 0
Item Detail:
   Text: Google/Doubleclick Ads
   URL: https://www.doubleclickbygoogle.com/
   Type: link
   Main Thread Time: 70.872
   Transfer Size: 55446
   Blocking Time: 0
Item Detail:
   Text: Other Google APIs/SDKs
   URL: https://developers.google.com/apis-explorer/#p/
   Type: link
   Main Thread Time: 12.668
   Transfer Size: 45551
   Blocking Time: 0
Item Detail:
   Text: Pinterest
   URL: https://pinterest.com/
   Type: link
   Main Thread Time: 15.457
   Transfer Size: 21075
   Blocking Time: 0
Item Detail:
   Text: Google Analytics
   URL: https://www.google.com/analytics/analytics/
   Type: link
   Main Thread Time: 22.374
   Transfer Size: 20846
   Blocking Time: 0
Item Detail:
   Text: Google Fonts
   URL: https://fonts.google.com/
   Type: link
   Main Thread Time: 0
   Transfer Size: 19448
   Blocking Time: 0
Item Detail:
   Text: Amazon Ads
   URL: https://ad.amazon.com/
   Type: link
   Main Thread Time: 42.707
   Transfer Size: 14866
   Blocking Time: 0
Item Detail:
   Text: Yahoo!
   URL: https://www.yahoo.com/
   Type: link
   Main Thread Time: 8.614
   Transfer Size: 13124
   Blocking Time: 0
Item Detail:
   Text: Bing Ads
   URL: https://bingads.microsoft.com
   Type: link
   Main Thread Time: 5.844
   Transfer Size: 9728
   Blocking Time: 0
Item Detail:
   Text: Jivox
   Type: link
   Main Thread Time: 5.416
   Transfer Size: 7180
   Blocking Time: 0
Item Detail:
   Text: Twitter Online Conversion Tracking
   Type: link
   Main Thread Time: 5.389
   Transfer Size: 6944
   Blocking Time: 0
Item Detail:
   Text: The Trade Desk
   URL: https://www.thetradedesk.com/
   Type: link
   Main Thread Time: 7.284
   Transfer Size: 4012
   Blocking Time: 0
Item Detail:
   Text: Adobe Tag Manager
   URL: https://www.adobe.com/experience-platform/
   Type: link
   Main Thread Time: 0
   Transfer Size: 3986
   Blocking Time: 0
Item Detail:
   Text: Scorecard Research
   URL: https://www.scorecardresearch.com/
   Type: link
   Main Thread Time: 2.234
   Transfer Size: 3048
   Blocking Time: 0
Item Detail:
   Text: Tapad
   Type: link
   Main Thread Time: 0
   Transfer Size: 2516
   Blocking Time: 0
Item Detail:
   Text: Salesforce
   URL: https://www.salesforce.com/products/marketing-cloud/
   Type: link
   Main Thread Time: 0
   Transfer Size: 2035
   Blocking Time: 0
Item Detail:
   Text: Xaxis
   URL: https://www.xaxis.com/
   Type: link
   Main Thread Time: 0
   Transfer Size: 1743
   Blocking Time: 0
Item Detail:
   Text: Burst Media
   Type: link
   Main Thread Time: 0
   Transfer Size: 1525
   Blocking Time: 0
Item Detail:
   Text: Index Exchange
   Type: link
   Main Thread Time: 0
   Transfer Size: 1501
   Blocking Time: 0
Item Detail:
   Text: BlueKai
   Type: link
   Main Thread Time: 0
   Transfer Size: 1449
   Blocking Time: 0
Item Detail:
   Text: SpotXchange
   Type: link
   Main Thread Time: 0
   Transfer Size: 1297
   Blocking Time: 0
Item Detail:
   Text: Visual IQ
   URL: https://www.visualiq.com
   Type: link
   Main Thread Time: 0
   Transfer Size: 1289
   Blocking Time: 0
Item Detail:
   Text: Sizmek
   URL: https://www.sizmek.com/
   Type: link
   Main Thread Time: 0
   Transfer Size: 1136
   Blocking Time: 0
Item Detail:
   Text: Adform
   Type: link
   Main Thread Time: 0
   Transfer Size: 1133
   Blocking Time: 0
Item Detail:
   Text: Pubmatic
   URL: https://pubmatic.com/
   Type: link
   Main Thread Time: 0
   Transfer Size: 1017
   Blocking Time: 0
Item Detail:
   Text: OpenX
   URL: https://www.openx.com/
   Type: link
   Main Thread Time: 0
   Transfer Size: 960
   Blocking Time: 0
Item Detail:
   Text: AOL / Oath / Verizon Media
   URL: https://www.oath.com/
   Type: link
   Main Thread Time: 0
   Transfer Size: 957
   Blocking Time: 0
Item Detail:
   Text: Samba TV
   Type: link
   Main Thread Time: 0
   Transfer Size: 899
   Blocking Time: 0
Item Detail:
   Text: AppNexus
   URL: https://www.appnexus.com/
   Type: link
   Main Thread Time: 0
   Transfer Size: 690
   Blocking Time: 0
Item Detail:
   Text: Aggregate Knowledge
   Type: link
   Main Thread Time: 0
   Transfer Size: 673
   Blocking Time: 0
Item Detail:
   Text: Rubicon Project
   URL: https://rubiconproject.com/
   Type: link
   Main Thread Time: 0
   Transfer Size: 666
   Blocking Time: 0
Item Detail:
   Text: Unruly Media
   Type: link
   Main Thread Time: 0
   Transfer Size: 607
   Blocking Time: 0
Item Detail:
   Text: StickyADS.tv
   Type: link
   Main Thread Time: 0
   Transfer Size: 565
   Blocking Time: 0
Item Detail:
   Text: Taboola
   URL: https://www.taboola.com/
   Type: link
   Main Thread Time: 0
   Transfer Size: 470
   Blocking Time: 0
Item Detail:
   Text: Twitter
   URL: https://twitter.com
   Type: link
   Main Thread Time: 1.984
   Transfer Size: 383
   Blocking Time: 0
Item Detail:
   Text: eXelate
   Type: link
   Main Thread Time: 0
   Transfer Size: 364
   Blocking Time: 0
Item Detail:
   Text: Bidswitch
   URL: https://www.bidswitch.com/
   Type: link
   Main Thread Time: 0
   Transfer Size: 235
   Blocking Time: 0
Type: table
Wasted Bytes: 429309
Wasted Time (ms): 0
Text: Third-Party
Item Type: link
Key: entity

Key: transferSize
Text: Transfer Size
Granularity: 1
Item Type: bytes
Key: blockingTime
Text: Main-Thread Blocking Time
Granularity: 1
Item Type: ms

Audits - Timing Budget

ID: timing-budget
Title: Timing budget
Description: Set a timing budget to help you keep an eye on the performance of your site. Performant sites load fast and respond to user input events quickly. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/budgets).
Score: Unknown
Score Display Mode: notApplicable

Audits - Render Blocking Resources

ID: render-blocking-resources
Title: Eliminate render-blocking resources
Description: Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn more](https://web.dev/render-blocking-resources/).
Score: 1
Score Display Mode: numeric
Display Value: Unknown
Numeric Value: 0
Type: opportunity
Overall Savings (ms): 0

Audits - Render Blocking Resources - Details

Audits - Render Blocking Resources - Headings


Audits - Main Thread Tasks

ID: main-thread-tasks
Title: Tasks
Description: Lists the toplevel main thread tasks that executed during page load.
Score: Unknown
Score Display Mode: informative
Type: table

Audits - Main Thread Tasks - Headings

Heading Items:
   Text: Start Time
   Key: startTime
   Item Type: ms
   Granularity: 1
Heading Items:
   Text: End Time
   Key: duration
   Item Type: ms
   Granularity: 1

Audits - Network RTT

ID: network-rtt
Title: Network Round Trip Times
Description: Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance. [Learn more](https://hpbn.co/primer-on-latency-and-bandwidth/).
Score: Unknown
Score Display Mode: informative
Display Value: 0 ms
Numeric Value: 0

Audits - Unminified Javascript

ID: unminified-javascript
Title: Minify JavaScript
Description: Minifying JavaScript files can reduce payload sizes and script parse time. [Learn more](https://web.dev/unminified-javascript/).
Score: 1
Score Display Mode: numeric
Numeric Value: 0
Details (print_r):
Array
(
    [overallSavingsMs] => 0
    [type] => opportunity
    [headings] => Array
        (
        )

    [overallSavingsBytes] => 0
    [items] => Array
        (
        )

)

Audits - Mainthread Work Breakdown

ID: mainthread-work-breakdown
Title: Minimizes main-thread work
Description: Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. [Learn more](https://web.dev/mainthread-work-breakdown/)
Score: 0.98
Score Display Mode: numeric
Display Value: 1.3 s
Numeric Value: 1255.343

Audits - Mainthread Work Breakdown - Details

Type: table
Text: Category
Item Type: text
Key: groupLabel
Item Type: ms
Text: Time Spent
Granularity: 1
Key: duration

Heading Items:
   Group Label: Script Evaluation
   Duration: 711.99299999999
   Group: scriptEvaluation

Heading Items:
   Group Label: Other
   Duration: 253.806
   Group: other

Heading Items:
   Group Label: Style & Layout
   Duration: 91.564
   Group: styleLayout

Heading Items:
   Group Label: Script Parsing & Compilation
   Duration: 70.076
   Group: scriptParseCompile

Heading Items:
   Group Label: Rendering
   Duration: 61.563
   Group: paintCompositeRender

Heading Items:
   Group Label: Parse HTML & CSS
   Duration: 45.135
   Group: parseHTML

Heading Items:
   Group Label: Garbage Collection
   Duration: 21.206
   Group: garbageCollection

Audits - Unminified CSS

ID: unminified-css
Title: Minify CSS
Description: Minifying CSS files can reduce network payload sizes. [Learn more](https://web.dev/unminified-css/).
Score: 1
Score Display Mode: numeric
Display Value: Unknown
Numeric Value: 0
Overall Savings (ms): 0
Overall Savings Bytes: 0
Type: opportunity

Audits - Unminified CSS - Details


Audits - Unused CSS Rules

ID: unused-css-rules
Title: Remove unused CSS
Description: Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity. [Learn more](https://web.dev/unused-css-rules/).
Score: 1
Score Display Mode: numeric
Display Value: Unknown
Numeric Value: 0
Type: opportunity
Overall Savings (ms): 0
Overall Savings Bytes: 0

Audits - Unused CSS Rules - Details


Audits - Interactive

ID: interactive
Title: Time to Interactive
Description: Time to interactive is the amount of time it takes for the page to become fully interactive. [Learn more](https://web.dev/interactive/).
Score: 0.99
Score Display Mode: numeric
Display Value: 1.5 s
Numeric Value: 1491

Audits - Critical Request Chains

ID: critical-request-chains
Title: Avoid chaining critical requests
Description: The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load. [Learn more](https://web.dev/critical-request-chains/).
Score: Unknown
Score Display Mode: notApplicable
Display Value: Unknown
Longest Chain Transfer Size: 43675
Longest Chain Duration: 163.21899998002
Longest Chain Length: 1
Type: criticalrequestchain

Audits - Critical Request Chains - Details


Critical Request Chains Request:
   Request Start Time: 968243.600019
   Request Response Received Time: 968243.763235
   Request End Time: 968243.763238
   Request URL: https://www.zillow.com/
   Request Transfer Size: 43675
   Critical Request Chains Children:

Audits - Final Screenshot

ID: final-screenshot
Title: Final Screenshot
Description: The last screenshot captured of the pageload.
Score: Unknown
Score Display Mode: informative
Type: screenshot
Timing: 1703
Timestamp: 968245301971
Data:

Audits - Offscreen Images

ID: offscreen-images
Title: Defer offscreen images
Description: Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn more](https://web.dev/offscreen-images/).
Score: 1
Score Display Mode: numeric
Numeric Value: 0
Overall Savings (ms): 0
Overall Savings Bytes: 0
Type: opportunity

Audits - Largest Contentful Paint

ID: largest-contentful-paint
Title: Largest Contentful Paint
Description: Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn More](https://web.dev/lighthouse-largest-contentful-paint/)
Score: 0.84
Score Display Mode: numeric
Display Value: 1.4 s
Numeric Value: 1390

Audits - Diagnostics

ID: diagnostics
Title: Diagnostics
Description: Collection of useful page vitals.
Score: Unknown
Score Display Mode: informative
Type: debugdata

Diagnostics Items:
   Total Byte Weight: 1178582
   Max RTT: 0.00011700631852558
   Throughput: 1465918137.5202
   Num Tasks Over 10ms: 24
   Num Tasks Over 500ms: 0
   Total Task Time: 1255.343
   Num Tasks: 1972
   Num Tasks Over 100ms: 0
   Num Tasks Over 50ms: 5
   RTT: 0.00011700631852558
   Num Tasks Over 25ms: 10
   Num Stylesheets: 1
   Num Scripts: 37
   Main Document Transfer Size: 43675
   Num Requests: 199
   Num Fonts: 3

Audits - Uses Webp Images

ID: uses-webp-images
Title: Serve images in next-gen formats
Description: Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more](https://web.dev/uses-webp-images/).
Score: 0.78
Score Display Mode: numeric
Display Value: Potential savings of 288 KiB
Numeric Value: 270
Warnings (print_r):
Array
(
)

Type: opportunity
Overall Savings Bytes: 294750
Overall Savings (ms): 270

Audits - Uses Webp Images - Items

Uses Webp Images Items:
   Total Bytes: 326800
   Wasted Bytes: 235406
   From Protocol: 1
   Is Cross Origin: 1
   URL: https://www.zillowstatic.com/s3/homepage/static/_Desktop_Overlay_ReadyChange_HC.jpg
Uses Webp Images Items:
   Total Bytes: 48293
   Wasted Bytes: 25153
   From Protocol: 1
   Is Cross Origin: 1
   URL: https://www.zillowstatic.com/s3/homepage/static/Sell_a_home.png
Uses Webp Images Items:
   Total Bytes: 38053
   Wasted Bytes: 21461
   From Protocol: 1
   Is Cross Origin: 1
   URL: https://www.zillowstatic.com/s3/homepage/static/Rent_a_home.png
Uses Webp Images Items:
   Total Bytes: 35452
   Wasted Bytes: 12730
   From Protocol: 1
   Is Cross Origin: 1
   URL: https://www.zillowstatic.com/s3/homepage/static/Buy_a_home.png

Audits - Resource Summary

ID: resource-summary
Title: Keep request counts low and transfer sizes small
Description: To set budgets for the quantity and size of page resources, add a budget.json file. [Learn more](https://web.dev/use-lighthouse-for-performance-budgets/).
Score: Unknown
Score Display Mode: informative
Display Value: 198 requests • 1,151 KiB
Type: table

Audits - Resource Summary - Details

Resource Summary Headings:
   Key: label
   Item Type: text
   Text: Resource Type
Resource Summary Headings:
   Key: requestCount
   Item Type: numeric
   Text: Requests
Resource Summary Headings:
   Key: transferSize
   Item Type: bytes
   Text: Transfer Size

Resource Summary Items:
   Resource Type: total
   Label: Total
   Request Count: 198
   Transfer Size: 1178582
Resource Summary Items:
   Resource Type: script
   Label: Script
   Request Count: 37
   Transfer Size: 509591
Resource Summary Items:
   Resource Type: image
   Label: Image
   Request Count: 67
   Transfer Size: 481741
Resource Summary Items:
   Resource Type: other
   Label: Other
   Request Count: 81
   Transfer Size: 95128
Resource Summary Items:
   Resource Type: document
   Label: Document
   Request Count: 9
   Transfer Size: 56065
Resource Summary Items:
   Resource Type: font
   Label: Font
   Request Count: 3
   Transfer Size: 34775
Resource Summary Items:
   Resource Type: stylesheet
   Label: Stylesheet
   Request Count: 1
   Transfer Size: 1282
Resource Summary Items:
   Resource Type: media
   Label: Media
   Request Count: 0
   Transfer Size: 0
Resource Summary Items:
   Resource Type: third-party
   Label: Third-party
   Request Count: 193
   Transfer Size: 1104350

Audits - Server Response Time

ID: server-response-time
Title: Initial server response time was short
Description: Keep the server response time for the main document short because all other requests depend on it. [Learn more](https://web.dev/time-to-first-byte/).
Score: 1
Score Display Mode: binary
Display Value: Root document took 160 ms
Numeric Value: 164.216
Type: opportunity
Overall Savings (ms): 64.216

Audits - Font Display

ID: font-display
Title: Ensure text remains visible during webfont load
Description: Leverage the font-display CSS feature to ensure text is user-visible while webfonts are loading. [Learn more](https://web.dev/font-display/).
Score: 0
Score Display Mode: binary
Type: table
Headings (print_r):
Array
(
    [0] => Array
        (
            [text] => URL
            [key] => url
            [itemType] => url
        )

    [1] => Array
        (
            [key] => wastedMs
            [itemType] => ms
            [text] => Potential Savings
        )

)

Items (print_r):
Array
(
    [0] => Array
        (
            [url] => https://fonts.gstatic.com/s/opensans/v17/mem5YaGs126MiZpBA-UNirkOUuhpKKSTjw.woff2
            [wastedMs] => 2.9990000184625
        )

    [1] => Array
        (
            [url] => https://fonts.gstatic.com/s/opensans/v17/mem8YaGs126MiZpBA-UFVZ0bf8pkAg.woff2
            [wastedMs] => 3.0570001108572
        )

)

Audits - Bootup Time

ID: bootup-time
Title: JavaScript execution time
Description: Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. [Learn more](https://web.dev/bootup-time/).
Score: 0.99
Score Display Mode: numeric
Display Value: 0.6 s
Numeric Value: 585.039
Type: table
Wasted Time (ms): 585.039

Audits - Bootup Time - Items

Bootup Time - Items:
   Total: 228.583
   Scripting: 29.598
   Script Parse Compile: 3.838
   URL: https://www.zillow.com/
Bootup Time - Items:
   Total: 219.534
   Scripting: 207.359
   Script Parse Compile: 0.97
   URL: https://www.zillowstatic.com/s3/homepage/_next/static/chunks/HomeCardList.7325820.js
Bootup Time - Items:
   Total: 156.235
   Scripting: 2.169
   Script Parse Compile: 1.813
   URL: Unattributable
Bootup Time - Items:
   Total: 120.869
   Scripting: 98.671
   Script Parse Compile: 13.196
   URL: https://www.googletagmanager.com/gtm.js?id=GTM-P6HT97
Bootup Time - Items:
   Total: 96.472
   Scripting: 85.912
   Script Parse Compile: 5.836
   URL: https://www.zillowstatic.com/s3/homepage/_next/static/chunks/commons.2b9e846.js
Bootup Time - Items:
   Total: 77.99
   Scripting: 72.015
   Script Parse Compile: 2.393
   URL: https://www.zillow.com/HYx10rg3/init.js
Bootup Time - Items:
   Total: 63.18
   Scripting: 59.501
   Script Parse Compile: 1.768
   URL: https://www.zillowstatic.com/s3/homepage/_next/static/LZfgDVG4Z-qrjtonLOUTY/lazyComponents/signInComponents.js

Audits - Efficient Animated Content

ID: efficient-animated-content
Title: Use video formats for animated content
Description: Large GIFs are inefficient for delivering animated content. Consider using MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF to save network bytes. [Learn more](https://web.dev/efficient-animated-content/)
Score: 1
Score Display Mode: numeric
Numeric Value: 0
Type: opportunity
Overall Savings Bytes: 0
Overall Savings (ms): 0
Headings (print_r):
Array
(
)

Items (print_r):
Array
(
)

Audits - Metrics

ID: metrics
Title: Metrics
Description: Collects all available metrics.
Score: Unknown
Score Display Mode: informative
Numeric Value: 1491
Type: debugdata
Speed Index: 689
Observed First Meaningful Paint (ts): 968243859225
First Meaningful Paint: 629
Observed First Contentful Paint: 261
Observed Navigation Start (ts): 968243598624
Cumulative Layout Shift: 0.071937854828824
Observed Largest Contentful Paint: 590
Observed Trace End (ts): 968246106424
Observed Dom Content Loaded: 325
Observed Cumulative Layout Shift: 0.071937854828824
Observed Dom Content Loaded (ts): 968243923618
Largest Contentful Paint: 1390
Observed First Visual Change (ts): 968243851624
Observed Speed Index: 558
Observed Last Visual Change (ts): 968245251624
Observed Largest Contentful Paint (ts): 968244188887
Max Potential FID: 87
Observed Navigation Start: 0
Observed Last Visual Change: 1653
Observed First Paint: 261
Estimated Input Latency: 18
Observed Load (ts): 968244181151
First Contentful Paint: 629
Observed Speed Index (ts): 968244156517
Observed First Meaningful Paint: 261
Total Blocking Time: 82
Observed Load: 583
Observed First Contentful Paint (ts): 968243859225
First CPU Idle: 1428
Observed First Paint (ts): 968243859225
Observed Trace End: 2508
Interactive: 1491
Observed First Visual Change: 253
LCP Invalidated:

Audits - Total Blocking Time

ID: total-blocking-time
Title: Total Blocking Time
Description: Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. [Learn more](https://web.dev/lighthouse-total-blocking-time/).
Score: 0.99
Score Display Mode: numeric
Display Value: 80 ms
Numeric Value: 82

Audits - Uses Text Compression

ID: uses-text-compression
Title: Enable text compression
Description: Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more](https://web.dev/uses-text-compression/).
Score: 1
Score Display Mode: numeric
Numeric Value: 0
Overall Savings (ms): 0
Type: opportunity
Overall Savings Bytes: 0
Headings (print_r):
Array
(
)

Items (print_r):
Array
(
)

Audits - Total Byte Weight

ID: total-byte-weight
Title: Avoids enormous network payloads
Description: Large network payloads cost users real money and are highly correlated with long load times. [Learn more](https://web.dev/total-byte-weight/).
Score: 1
Score Display Mode: numeric
Display Value: Total size was 1,151 KiB
Numeric Value: 1178582
Type: table

Audits - Total Byte Weight - Items

Total Byte Weight - Items:
   Total Bytes: 327371
   URL: https://www.zillowstatic.com/s3/homepage/static/_Desktop_Overlay_ReadyChange_HC.jpg
Total Byte Weight - Items:
   Total Bytes: 84772
   URL: https://www.zillowstatic.com/s3/homepage/_next/static/chunks/commons.2b9e846.js
Total Byte Weight - Items:
   Total Bytes: 80597
   URL: https://www.googletagmanager.com/gtm.js?id=GTM-P6HT97
Total Byte Weight - Items:
   Total Bytes: 73023
   URL: https://connect.facebook.net/signals/config/547145892064117?v=2.9.33&r=stable
Total Byte Weight - Items:
   Total Bytes: 48863
   URL: https://www.zillowstatic.com/s3/homepage/static/Sell_a_home.png
Total Byte Weight - Items:
   Total Bytes: 43675
   URL: https://www.zillow.com/
Total Byte Weight - Items:
   Total Bytes: 39993
   URL: https://www.zillowstatic.com/s3/homepage/_next/static/chunks/SearchBar.6d82a89.js
Total Byte Weight - Items:
   Total Bytes: 38828
   URL: https://accounts.google.com/gsi/client
Total Byte Weight - Items:
   Total Bytes: 38622
   URL: https://www.zillowstatic.com/s3/homepage/static/Rent_a_home.png
Total Byte Weight - Items:
   Total Bytes: 36022
   URL: https://www.zillowstatic.com/s3/homepage/static/Buy_a_home.png

Audits - Unused Javascript

ID: unused-javascript
Title: Remove unused JavaScript
Description: Remove unused JavaScript to reduce bytes consumed by network activity. [Learn more](https://web.dev/unused-javascript/).
Score: 0.92
Score Display Mode: numeric
Display Value: Potential savings of 82 KiB
Numeric Value: 100
Type: opportunity
Overall Savings (ms): 100
Overall Savings Bytes: 83815

Audits - Unused Javascript - Items

Unused Javascript Items:
   Wasted Percent: 75.570243125975
   Total Bytes: 73023
   Wasted Bytes: 55184
   URL: https://connect.facebook.net/signals/config/547145892064117?v=2.9.33&r=stable
Unused Javascript Items:
   Wasted Percent: 33.773825049889
   Total Bytes: 84772
   Wasted Bytes: 28631
   URL: https://www.zillowstatic.com/s3/homepage/_next/static/chunks/commons.2b9e846.js

Audits - No Document Write

ID: no-document-write
Title: Avoid `document.write()`
Description: For users on slow connections, external scripts dynamically injected via `document.write()` can delay page load by tens of seconds. [Learn more](https://web.dev/no-document-write/).
Score: 0
Score Display Mode: binary
Type: table
Headings (print_r):
Array
(
    [0] => Array
        (
            [itemType] => url
            [text] => URL
            [key] => url
        )

    [1] => Array
        (
            [text] => Location
            [itemType] => text
            [key] => label
        )

)

Items (print_r):
Array
(
    [0] => Array
        (
            [label] => line: 22
            [url] => https://www.googleadservices.com/pagead/conversion.js
        )

)

Audits - Dom Size

ID: Unknown
Title: Unknown
Description: Unknown
Score: Unknown
Score Display Mode: Unknown
Display Value: Unknown
Numeric Value: Unknown
Type: Unknown

Audits - Redirects

ID: redirects
Title: Avoid multiple page redirects
Description: Redirects introduce additional delays before the page can be loaded. [Learn more](https://web.dev/redirects/).
Score: 1
Score Display Mode: numeric
Numeric Value: 0
Type: opportunity
Overall Savings (ms): 0
Headings (print_r):
Array
(
)

Items (print_r):
Array
(
)

Audits - Uses Rel Preload

ID: uses-rel-preload
Title: Preload key requests
Description: Consider using `` to prioritize fetching resources that are currently requested later in page load. [Learn more](https://web.dev/uses-rel-preload/).
Score: 1
Score Display Mode: numeric
Numeric Value: 0
Type: opportunity
Overall Savings (ms): 0
Headings (print_r):
Array
(
)

Items (print_r):
Array
(
)

Audits - Uses Responsive Images

ID: uses-responsive-images
Title: Properly size images
Description: Serve images that are appropriately-sized to save cellular data and improve load time. [Learn more](https://web.dev/uses-responsive-images/).
Score: 0.93
Score Display Mode: numeric
Display Value: Potential savings of 106 KiB
Numeric Value: 90
Type: opportunity
Overall Savings Bytes: 108186
Overall Savings (ms): 90
Warnings (print_r):
Array
(
)

Audits - Uses Responsive Images - Items

Uses Responsive Images - Items:
   Total Bytes: 48293
   Wasted Bytes: 42896
Uses Responsive Images - Items:
   Total Bytes: 38053
   Wasted Bytes: 33800
Uses Responsive Images - Items:
   Total Bytes: 35452
   Wasted Bytes: 31490

Desktop - Performance

Here is more detailed information about the page.


Network Requests

Lists the network requests that were made during page load.

URL Start Time End Time Transfer Size Resource Size Status Code MIME Type Resource Type
1 https://www.zillow.com/ 0.00 163.22 42.65 KB 186.61 KB 200 text/html Document
2 https://sb.scorecardresearch.com/beacon.js 177.53 194.84 1.14 KB 1.43 KB 200 application/x-javascript Script
3 https://fonts.gstatic.com/s/opensans/v17/mem5YaGs126MiZpBA-U... 177.72 180.72 9.52 KB 8.96 KB 200 font/woff2 Font
4 https://fonts.gstatic.com/s/opensans/v17/mem8YaGs126MiZpBA-U... 178.01 181.07 9.47 KB 8.92 KB 200 font/woff2 Font
5 https://www.zillowstatic.com/static-zsg/LATEST/static-zsg/zs... 178.32 414.89 14.97 KB 14.34 KB 200 application/font-woff Font
6 https://accounts.google.com/gsi/client 178.58 197.05 37.92 KB 108.90 KB 200 application/javascript Script
7 https://www.google-analytics.com/analytics.js 178.88 183.18 19.15 KB 46.22 KB 200 text/javascript Script
8 https://www.zillowstatic.com/s3/homepage/_next/static/LZfgDV... 179.18 201.30 1.33 KB 1.72 KB 200 application/javascript Script
9 https://www.zillowstatic.com/s3/homepage/_next/static/LZfgDV... 179.51 197.87 11.16 KB 36.69 KB 200 application/javascript Script
10 https://www.zillowstatic.com/s3/homepage/_next/static/LZfgDV... 179.69 196.15 1.11 KB 1.43 KB 200 application/javascript Script
11 https://www.zillowstatic.com/s3/homepage/_next/static/LZfgDV... 179.88 227.66 1.46 KB 2.64 KB 200 application/javascript Script
12 https://e.zg-api.com/a/z/js/v1/analytics.js?v=bcf290c 180.02 199.02 14.71 KB 49.43 KB 200 application/javascript Script
13 https://www.zillowstatic.com/s3/homepage/_next/static/LZfgDV... 180.19 224.28 0.80 KB 0.33 KB 200 application/javascript Script
14 https://www.zillowstatic.com/s3/homepage/_next/static/LZfgDV... 180.56 204.46 18.62 KB 63.76 KB 200 application/javascript Script
15 https://www.zillowstatic.com/s3/homepage/_next/static/runtim... 181.51 203.34 1.92 KB 2.90 KB 200 application/javascript Script
16 https://www.zillowstatic.com/s3/homepage/_next/static/chunks... 181.69 205.31 82.79 KB 310.75 KB 200 application/javascript Script
17 https://www.zillowstatic.com/s3/homepage/_next/static/runtim... 181.85 203.86 13.63 KB 42.58 KB 200 application/javascript Script
18 https://www.googletagmanager.com/gtm.js?id=GTM-P6HT97 181.99 222.38 78.71 KB 377.17 KB 200 application/javascript Script
19 https://www.zillowstatic.com/s3/homepage/static/_Desktop_Ove... 212.01 446.34 319.70 KB 319.14 KB 200 image/jpeg Image
20 data:image/svg+xml,%0A%3Csvg%20width%3D%2243px%22%20height%3... 214.83 214.87 0.00 KB 0.23 KB 200 image/svg+xml Image
21 https://www.google-analytics.com/j/collect?v=1&_v=j88&a=1316... 276.57 280.77 0.61 KB 0.00 KB 200 text/plain XHR
22 https://www.zillow.com/HYx10rg3/init.js 321.76 356.66 29.84 KB 80.01 KB 200 application/javascript Script
23 https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=... 326.77 329.85 0.68 KB 0.00 KB 200 text/plain XHR
24 https://www.zillowstatic.com/s3/homepage/_next/static/chunks... 391.07 412.62 39.06 KB 0.00 KB 200 application/javascript Other
25 https://www.zillowstatic.com/s3/homepage/_next/static/chunks... 392.66 408.75 4.31 KB 12.23 KB 200 application/javascript Script
26 https://www.zillow.com/ui/JavascriptEnabled.htm?zPage=HOPS:H... 410.12 423.47 0.00 KB 0.00 KB -1 Other
27 https://www.zillow.com/ui/ClientProfile.htm?pageName=HOPS:Ho... 411.72 424.13 0.00 KB 0.00 KB -1 Other
28 https://e.zg-api.com/click/z_prod/3edeb389-d302-4262-bf2b-66... 419.13 428.11 0.00 KB 0.00 KB -1 Other
29 https://www.google.com/ads/ga-audiences?t=sr&aip=1&_r=4&slf_... 422.16 439.83 0.67 KB 0.04 KB 200 image/gif Image
30 https://sb.scorecardresearch.com/b?c1=2&c2=6036206&c3=&c4=ww... 444.53 550.26 0.75 KB 0.00 KB 302
31 https://collector-pxhyx10rg3.px-cloud.net/api/v2/collector 542.09 572.94 0.98 KB 0.65 KB 200 application/json XHR
32 https://sb.scorecardresearch.com/b2?c1=2&c2=6036206&c3=&c4=w... 550.51 569.97 0.52 KB 0.00 KB 204 text/plain Image
33 https://www.zillowstatic.com/s3/homepage/static/Buy_a_home.p... 576.00 593.36 35.18 KB 34.62 KB 200 image/png Image
34 https://www.zillowstatic.com/s3/homepage/static/Sell_a_home.... 577.04 604.74 47.72 KB 47.16 KB 200 image/png Image
35 https://www.zillowstatic.com/s3/homepage/static/Rent_a_home.... 577.81 603.53 37.72 KB 37.16 KB 200 image/png Image
36 https://accounts.google.com/gsi/style 665.92 679.41 1.25 KB 0.65 KB 200 text/css Stylesheet
37 https://www.googleadservices.com/pagead/conversion_async.js 690.73 698.93 13.24 KB 30.80 KB 200 text/javascript Script
38 https://bat.bing.com/bat.js 691.70 714.49 8.92 KB 27.39 KB 200 application/javascript Script
39 https://static.ads-twitter.com/uwt.js 694.40 709.16 2.45 KB 5.04 KB 200 application/javascript Script
40 https://s.pinimg.com/ct/core.js 697.49 828.96 0.99 KB 1.12 KB 200 application/javascript Script
41 https://connect.facebook.net/en_US/fbevents.js 702.90 717.78 24.72 KB 91.19 KB 200 application/x-javascript Script
42 https://platform.twitter.com/oct.js 704.77 815.95 0.37 KB 0.00 KB 301
43 https://e.zg-api.com/click/z_prod/3edeb389-d302-4262-bf2b-66... 712.37 744.92 0.00 KB 0.00 KB -1 Other
44 https://accounts.google.com/gsi/status?client_id=23864897353... 720.65 744.09 1.29 KB 0.04 KB 200 application/json XHR
45 https://www.facebook.com/tr/?id=547145892064117&ev=PageView&... 720.90 733.91 0.50 KB 0.04 KB 200 image/gif Image
46 https://www.google-analytics.com/collect?v=1&_v=j88&a=131691... 721.07 724.36 0.59 KB 0.03 KB 200 image/gif Image
47 https://4704202.fls.doubleclick.net/activityi;src=4704202;ty... 779.91 786.64 1.24 KB 0.00 KB 302 text/html
48 https://4704202.fls.doubleclick.net/activityi;dc_pre=CLPcy9T... 787.37 795.39 1.49 KB 0.70 KB 200 text/html Document
49 https://4704202.fls.doubleclick.net/activityi;src=4704202;ty... 792.59 834.58 1.26 KB 0.00 KB 302 text/html
50 https://4704202.fls.doubleclick.net/activityi;src=4704202;ty... 801.74 809.95 1.21 KB 0.00 KB 302 text/html
51 https://pxl.jivox.com/tags/re/pxjs.php?px=85e66b1b701519&cDa... 801.44 819.37 2.58 KB 6.86 KB 200 application/javascript Script
52 https://pxl.jivox.com/tags/conv/pxjs.php?px=15eacd6e08ac9a&c... 802.09 818.22 1.77 KB 4.40 KB 200 application/javascript Script
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1.12 MB 2.25 MB

Avoid serving legacy JavaScript to modern browsers

Polyfills and transforms enable legacy browsers to use new JavaScript features.
However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers.
Score: 1
Potential savings of 24 KiB

URL wastedBytes
https://connect.facebook.net/signals/config/547145892064117?... 12072
https://s.yimg.com/wi/ytc.js 11928
https://e.zg-api.com/a/z/js/v1/analytics.js?v=bcf290c 95
https://www.zillowstatic.com/s3/homepage/_next/static/LZfgDV... 59
https://www.zillowstatic.com/s3/homepage/_next/static/chunks... 49
https://connect.facebook.net/en_US/fbevents.js 45
23.68 KB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS.
Score:

Avoids enormous network payloads

Large network payloads cost users real money and are highly correlated with long load times.
Score: 1
URL Resource Size
https://www.zillowstatic.com/s3/homepage/static/_Desktop_Overlay_ReadyChange_HC.jpg 319.70 KB
https://www.zillowstatic.com/s3/homepage/_next/static/chunks/commons.2b9e846.js 82.79 KB
https://www.googletagmanager.com/gtm.js?id=GTM-P6HT97 78.71 KB
https://connect.facebook.net/signals/config/547145892064117?v=2.9.33&r=stable 71.31 KB
https://www.zillowstatic.com/s3/homepage/static/Sell_a_home.png 47.72 KB
https://www.zillow.com/ 42.65 KB
https://www.zillowstatic.com/s3/homepage/_next/static/chunks/SearchBar.6d82a89.js 39.06 KB
https://accounts.google.com/gsi/client 37.92 KB
https://www.zillowstatic.com/s3/homepage/static/Rent_a_home.png 37.72 KB
https://www.zillowstatic.com/s3/homepage/static/Buy_a_home.png 35.18 KB

Third Party(External) Requests

Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading.Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading.
Score: 1
Title URL Requests Transfer Size Blocking Time Main Thread Time
1 Facebook https://www.facebook.com 2 97.02 KB 0 MS 41.354 MS
2 Google Tag Manager https://marketingplatform.google.com/about/tag-manager/ 1 78.71 KB 0 MS 120.869 MS
3 Google/Doubleclick Ads https://www.doubleclickbygoogle.com/ 3 54.15 KB 0 MS 70.872 MS
4 Other Google APIs/SDKs https://developers.google.com/apis-explorer/#p/ 2 44.48 KB 0 MS 12.668 MS
5 Pinterest https://pinterest.com/ 1 20.58 KB 0 MS 15.457 MS
6 Google Analytics https://www.google.com/analytics/analytics/ 1 20.36 KB 0 MS 22.374 MS
7 Google Fonts https://fonts.google.com/ 2 18.99 KB 0 MS 0 MS
8 Amazon Ads https://ad.amazon.com/ 0 14.52 KB 0 MS 42.707 MS
9 Yahoo! https://www.yahoo.com/ 2 12.82 KB 0 MS 8.614 MS
10 Bing Ads https://bingads.microsoft.com 1 9.50 KB 0 MS 5.844 MS
11 Jivox 0 7.01 KB 0 MS 5.416 MS
12 Twitter Online Conversion Tracking 0 6.78 KB 0 MS 5.389 MS
13 The Trade Desk https://www.thetradedesk.com/ 0 3.92 KB 0 MS 7.284 MS
14 Adobe Tag Manager https://www.adobe.com/experience-platform/ 0 3.89 KB 0 MS 0 MS
15 Scorecard Research https://www.scorecardresearch.com/ 0 2.98 KB 0 MS 2.234 MS
16 Tapad 0 2.46 KB 0 MS 0 MS
17 Salesforce https://www.salesforce.com/products/marketing-cloud/ 0 1.99 KB 0 MS 0 MS
18 Xaxis https://www.xaxis.com/ 0 1.70 KB 0 MS 0 MS
19 Burst Media 0 1.49 KB 0 MS 0 MS
20 Index Exchange 0 1.47 KB 0 MS 0 MS
21 BlueKai 0 1.42 KB 0 MS 0 MS
22 SpotXchange 0 1.27 KB 0 MS 0 MS
23 Visual IQ https://www.visualiq.com 0 1.26 KB 0 MS 0 MS
24 Sizmek https://www.sizmek.com/ 0 1.11 KB 0 MS 0 MS
25 Adform 0 1.11 KB 0 MS 0 MS
26 Pubmatic https://pubmatic.com/ 0 0.99 KB 0 MS 0 MS
27 OpenX https://www.openx.com/ 0 0.94 KB 0 MS 0 MS
28 AOL / Oath / Verizon Media https://www.oath.com/ 0 0.93 KB 0 MS 0 MS
29 Samba TV 0 0.88 KB 0 MS 0 MS
30 AppNexus https://www.appnexus.com/ 0 0.67 KB 0 MS 0 MS
31 Aggregate Knowledge 0 0.66 KB 0 MS 0 MS
32 Rubicon Project https://rubiconproject.com/ 0 0.65 KB 0 MS 0 MS
33 Unruly Media 0 0.59 KB 0 MS 0 MS
34 StickyADS.tv 0 0.55 KB 0 MS 0 MS
35 Taboola https://www.taboola.com/ 0 0.46 KB 0 MS 0 MS
36 Twitter https://twitter.com 0 0.37 KB 0 MS 1.984 MS
37 eXelate 0 0.36 KB 0 MS 0 MS
38 Bidswitch https://www.bidswitch.com/ 0 0.23 KB 0 MS 0 MS
15 419.25 KB 0 MS

Remove unused JavaScript

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
Score: 0.92
Potential savings of 82 KiB
URL Transfer Size Potential Savings Potential Savings %
1 https://connect.facebook.net/signals/config/547145892064117?v=2.9... 71.31 KB 53.89 KB 75.57%
2 https://www.zillowstatic.com/s3/homepage/_next/static/chunks/comm... 82.79 KB 27.96 KB 33.77%
81.85 KB

Minimizes main-thread work

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
Score: 0.98
Type Time Spent
1 Script Evaluation 711.99 MS
2 Other 253.81 MS
3 Style & Layout 91.56 MS
4 Script Parsing & Compilation 70.08 MS
5 Rendering 61.56 MS
6 Parse HTML & CSS 45.14 MS
7 Garbage Collection 21.21 MS

Avoid multiple page redirects

Redirects introduce additional delays before the page can be loaded.
Score: 1

No improvement needed.

Resource Summary

Keep request counts low and transfer sizes small. To set budgets for the quantity and size of page resources, add a budget.json file.
198 requests • 1,151 KiB
Resource Type Requests Transfer Size
1 Script 37 497.65 KB
2 Image 67 470.45 KB
3 Other 81 92.90 KB
4 Document 9 54.75 KB
5 Font 3 33.96 KB
6 Stylesheet 1 1.25 KB
7 Media 0 0.00 KB
8 Third-party 193 1,078.47 KB
198 1,151.00 KB

Minify CSS

Minifying CSS files can reduce network payload sizes.
Score: 1

No improvement needed.

Eliminate render-blocking resources

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.
Score: 1

No improvement needed.

Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.
Score:

No improvement needed.

Avoid long main-thread tasks

Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay.
Score:
5 long tasks found
URL Start Time Duration
1 https://www.zillowstatic.com/s3/homepage/_next/static/chunks... 1170 MS 87 MS
2 https://www.zillowstatic.com/s3/homepage/_next/static/chunks... 1287 MS 79 MS
3 https://accounts.google.com/gsi/client 1372 MS 69 MS
4 https://www.googletagmanager.com/gtm.js?id=GTM-P6HT97 1441 MS 57 MS
5 https://www.zillowstatic.com/s3/homepage/_next/static/chunks... 1498 MS 56 MS

Ensure text remains visible during webfont load

Leverage the font-display CSS feature to ensure text is user-visible while webfonts are loading.
Score: 0
URL Potential Savings
1 https://fonts.gstatic.com/s/opensans/v17/mem5YaGs126MiZpBA-U... 3.00 MS
2 https://fonts.gstatic.com/s/opensans/v17/mem8YaGs126MiZpBA-U... 3.06 MS
6 MS

Used for treemap app

No improvement needed.

Minify JavaScript

Minifying JavaScript files can reduce payload sizes and script parse time.
Score: 1

No improvement needed.

Diagnostics

Collection of useful page vitals.
Title Value
1 numTasksOver500ms 0
2 mainDocumentTransferSize 43675
3 numFonts 3
4 numTasksOver10ms 24
5 maxRtt 0.00011700631852558
6 numTasksOver25ms 10
7 throughput 1465918137.5202
8 numStylesheets 1
9 numTasks 1972
10 numTasksOver100ms 0
11 totalTaskTime 1255.343
12 numScripts 37
13 numRequests 199
14 maxServerLatency
15 rtt 0.00011700631852558
16 numTasksOver50ms 5
17 totalByteWeight 1178582

Efficiently encode images

Optimized images load faster and consume less cellular data.
Score: 0.88
Potential savings of 161 KiB
URL Total Size Potential Savings
1 https://www.zillowstatic.com/s3/homepage/static/_Desktop_Ove... 319.14 KB 161.49 KB
161.49 KB

Enable text compression

Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes.
Score: 1

No improvement needed.

JavaScript execution time

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
Score: 0.99
URL Script Evaluation Script Parse Total CPU Time
1 https://www.zillow.com/ 3.838 MS 29.598 MS 228.583 MS
2 https://www.zillowstatic.com/s3/homepage/_next/static/chunks... 0.97 MS 207.359 MS 219.534 MS
3 Unattributable 1.813 MS 2.169 MS 156.235 MS
4 https://www.googletagmanager.com/gtm.js?id=GTM-P6HT97 13.196 MS 98.671 MS 120.869 MS
5 https://www.zillowstatic.com/s3/homepage/_next/static/chunks... 5.836 MS 85.912 MS 96.472 MS
6 https://www.zillow.com/HYx10rg3/init.js 2.393 MS 72.015 MS 77.99 MS
7 https://www.zillowstatic.com/s3/homepage/_next/static/LZfgDV... 1.768 MS 59.501 MS 63.18 MS
962.863 MS

Properly size images

Serve images that are appropriately-sized to save cellular data and improve load time.
Score: 0.93
Potential savings of 106 KiB
URL Total Size Potential Savings Potential Savings %
1 https://www.zillowstatic.com/s3/homepage/static/Sell_a_home.... 47.16 KB 41.89 KB 88.82 %
2 https://www.zillowstatic.com/s3/homepage/static/Rent_a_home.... 37.16 KB 33.01 KB 88.82 %
3 https://www.zillowstatic.com/s3/homepage/static/Buy_a_home.p... 34.62 KB 30.75 KB 88.82 %
105.65 KB

Defer offscreen images

Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive.
Score: 1

No improvement needed.

Avoid chaining critical requests

Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive.
Score:

URL Start Time End Time Response Received Time Transfer Size
https://www.zillow.com/ 968,243.60 MS 968,243.76 MS 968,243.76 MS 42.65 KB