Performance Report for:

http://youtube.com

2021-06-27 03:27:38
California, United States

Fully Loaded Time

0.62s

Total Page Size

3M

Requests

70

Performance Scores

Overall Score

F
(24.5%)

Desktop Performance Score

F
(30.99%)

Mobile PageSpeed Score

F
(32.46%)
Download PDF

Summary

Here is more detailed information about the page.


Speed Visualization

0.5s
1.0s
1.5s
2.1s
2.6s
3.1s
3.6s
4.1s
4.6s
5.2s





TTFB: 533.632
First Contentful Paint: 1.1 s
Time to Interactive: 4.7 s
Largest Contentful Paint: 3.7 s



Filter:
Sort:
green
3
check
Page Title
Page Title : YouTube

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.
Learn more
green
3
check
Meta Description
Meta Description : Share your videos with friends, family, and the world

Your meta description does not exceed 150 characters. It's fine.

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.
green
3
check
Meta Keyword
Meta Keyword : video, sharing, camera phone, video phone, free, upload

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.
blue-dark
4
info-circle
Single Keywords
Keyword Occurrence Density Possible Spam
blue-dark
4
info-circle
Two Word Keywords
Keyword Occurrence Density Possible Spam
blue-dark
4
info-circle
Three Word Keywords
Keyword Occurrence Density Possible Spam
blue-dark
4
info-circle
Four Word Keywords
Keyword Occurrence Density Possible Spam
red
1
remove
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.
blue-dark
4
info-circle
Total Words
Total Words : 0

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.
red
1
remove
Text/HTML Ratio Test
Site failed text/HTML ratio test.

Text/HTML Ratio Test : 0%

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.
blue-dark
4
info-circle
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.
green
3
check
robot.txt
Your site have robot.txt

robot.txt

# robots.txt file for YouTube
# Created in the distant future (the year 2000) after
# the robotic uprising of the mid 90's which wiped out all humans.

User-agent: Mediapartners-Google*
Disallow:

User-agent: *
Disallow: /channel/*/community
Disallow: /comment
Disallow: /get_video
Disallow: /get_video_info
Disallow: /get_midroll_info
Disallow: /live_chat
Disallow: /login
Disallow: /results
Disallow: /signup
Disallow: /t/terms
Disallow: /timedtext_video
Disallow: /user/*/community
Disallow: /verify_age
Disallow: /watch_ajax
Disallow: /watch_fragments_ajax
Disallow: /watch_popup
Disallow: /watch_queue_ajax

Sitemap: https://www.youtube.com/sitemaps/sitemap.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
green
3
check
Sitemap
Your site have sitemap
Location: https://www.youtube.com/sitemaps/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
blue-dark
4
info-circle
Internal Vs. External Links
blue-dark
4
info-circle
NoIndex , NoFollow, DoDollow Links
green
3
check
SEO Friendly Links
red
1
remove
Favicon
Your site does not have favicon.

Learn more
green
3
check
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
red
1
remove
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
green
3
check
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.
yellow
2
exclamation-circle
HTML Page Size
HTML Page Size : 125 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
red
1
remove
GZIP Compression
GZIP compression is disabled.

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
green
3
check
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.
green
3
check
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.
red
1
remove
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
green
3
check
IP Canonicalization Test
Site passed 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
green
3
check
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
green
3
check
Plain Text Email Test
Site passed plain text email test. No plain text email found.

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
green
3
check
Keep request counts low and transfer sizes small
Keep request counts low and transfer sizes small :
DESKTOP 70 requests • 3,301 KiB

MOBILE 21 requests • 1,379 KiB


About this SEO factor:
To set budgets for the quantity and size of page resources, add a budget.json file. Learn More
green
3
check
Eliminate render-blocking resources
Eliminate render-blocking resources :
MOBILE Potential savings of 540 ms

DESKTOP Potential savings of 450 ms


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
green
3
check
Serve static assets with an efficient cache policy
Serve static assets with an efficient cache policy :
MOBILE 6 resources found

DESKTOP 37 resources found


About this SEO factor:
A long cache lifetime can speed up repeat visits to your page. Learn More
green
3
check
Minimize third-party usage
Minimize third-party usage :
MOBILE Third-party code blocked the main thread for 0 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
yellow
2
exclamation-circle
First Contentful Paint (3G)
First Contentful Paint (3G) :
MOBILE 9475 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
yellow
2
exclamation-circle
First Meaningful Paint
First Meaningful Paint :
MOBILE 4.7 s

DESKTOP 3.6 s


About this SEO factor:
First Meaningful Paint measures when the primary content of a page is visible. Learn More
yellow
2
exclamation-circle
Total Blocking Time
Total Blocking Time :
MOBILE 710 ms

DESKTOP 1,540 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
green
3
check
Efficiently encode images
Efficiently encode images :
MOBILE

DESKTOP Potential savings of 22 KiB


About this SEO factor:
Optimized images load faster and consume less cellular data. Learn More
red
1
remove
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
green
3
check
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
yellow
2
exclamation-circle
Properly size images
Properly size images :
DESKTOP Potential savings of 679 KiB

MOBILE


About this SEO factor:
Serve images that are appropriately-sized to save cellular data and improve load time. Learn More
green
3
check
Reduce unused CSS
Reduce unused CSS :
MOBILE Potential savings of 83 KiB

DESKTOP Potential savings of 267 KiB


About this SEO factor:
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn More
yellow
2
exclamation-circle
Avoids enormous network payloads
Avoids enormous network payloads :
MOBILE Total size was 1,379 KiB

DESKTOP Total size was 3,301 KiB


About this SEO factor:
Large network payloads cost users real money and are highly correlated with long load times. Learn More
yellow
2
exclamation-circle
Minimize main-thread work
Minimize main-thread work :
MOBILE 2.5 s

DESKTOP 5.4 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
Avoid chaining critical requests
Avoid chaining critical requests :
MOBILE 6 chains found

DESKTOP 15 chains found


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
green
3
check
Avoids an excessive DOM size
Avoids an excessive DOM size :
MOBILE 355 elements

DESKTOP 7,806 elements


About this SEO factor:
A large DOM will increase memory usage, cause longer Learn More
red
1
remove
Avoid multiple page redirects
Avoid multiple page redirects :
MOBILE Potential savings of 1,110 ms

DESKTOP Potential savings of 340 ms


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
green
3
check
User Timing marks and measures
User Timing marks and measures :
MOBILE 4 user timings

DESKTOP 23 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
green
3
check
Avoids `document.write()`
Avoids `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
green
3
check
All text remains visible during webfont loads
All text remains visible during webfont loads :

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 Potential savings of 24 KiB


About this SEO factor:
Minifying CSS files can reduce network payload sizes. Learn More
green
3
check
Image elements have explicit `width` and `height`
Image elements have explicit `width` and `height` :

About this SEO factor:
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn More
green
3
check
Serve images in next-gen formats
Serve images in next-gen formats :
DESKTOP Potential savings of 96 KiB

MOBILE


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
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
Reduce unused JavaScript
Reduce unused JavaScript :
MOBILE Potential savings of 413 KiB

DESKTOP Potential savings of 838 KiB


About this SEO factor:
Reduce unused JavaScript and defer loading scripts until they are required to decrease 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
Lazy load third-party resources with facades
Lazy load third-party resources with facades :
MOBILE

DESKTOP


About this SEO factor:
Some third-party embeds can be lazy loaded. Consider replacing them with a facade until they are required. Learn More
green
3
check
Initial server response time was short
Initial server response time was short :
MOBILE Root document took 160 ms

DESKTOP Root document took 250 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 6 long tasks found

DESKTOP 6 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://m.youtube.com/content typetext/html; charset=utf-8
http code200header size1869
request size505filetime-1
ssl verify result0redirect count2
total time0.616957namelookup time0.004215
connect time0.011592pretransfer time0.038295
size upload0size download127720
speed download207016speed upload0
download content length-1upload content length-1
starttransfer time0.08406redirect time0.153158
redirect urlprimary ip172.217.164.174
certinfoprimary port443
local ip173.236.198.197local port35809
http version2protocol2
ssl verifyresult0schemeHTTPS
blue-dark
4
info-circle
Alexa Rank
Traffic Rank 2
Reach Rank 2
Top Country United States
Top Country Rank 2
blue-dark
4
info-circle
Domain IP Information
ISP Google Cloud
IP 142.250.185.206
Organization Google Cloud
City
Country United States
Time Zone
Longitude -97.822000
Latitude 37.751000
blue-dark
4
info-circle
IP & DNS Report
IPv4 172.217.15.78
IPv6 2607:f8b0:4004:836::200e
DNS Report
SLHostClassTTLTypePRITargetIP
1youtube.comIN299A172.217.15.78
2youtube.comIN86400NSns4.google.com
3youtube.comIN86400NSns3.google.com
4youtube.comIN86400NSns1.google.com
5youtube.comIN86400NSns2.google.com
6youtube.comIN300MX0smtp.google.com
7youtube.comIN300AAAA2607:f8b0:4004:836::200e
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
lhId selector nodeLabel
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: 710 ms
blue-dark
4
info-circle
metrics
metrics :
Observed Load Ts: 5302765883954
Observed Cumulative Layout Shift Main Frame: 0.018517047543998
Cumulative Layout Shift Main Frame: 0.018517047543998
Observed First Contentful Paint Ts: 5302763008402
Observed Speed Index: 2921
Observed Load: 3638
Observed Largest Contentful Paint: 3512
Observed Largest Contentful Paint All Frames: 3512
First Meaningful Paint: 3368
Total Cumulative Layout Shift: 0.018517047543998
Observed Dom Content Loaded: 2507
Observed Trace End: 6384
Observed Cumulative Layout Shift: 0.018517047543998
Observed Navigation Start Ts: 5302762245760
Observed First Contentful Paint All Frames: 763
Observed Largest Contentful Paint All Frames Ts: 5302765757682
Observed Trace End Ts: 5302768629930
Observed Total Cumulative Layout Shift: 0.018517047543998
Observed First Paint Ts: 5302763008402
Total Blocking Time: 1099
Observed Largest Contentful Paint Ts: 5302765757682
Observed First Meaningful Paint: 3512
Observed First Contentful Paint: 763
Observed Navigation Start: 0
Observed First Contentful Paint All Frames Ts: 5302763008402
Observed Last Visual Change: 5151
Observed Time Origin Ts: 5302762245760
Observed Time Origin: 0
Observed First Paint: 763
Max Potential FID: 708
Observed First Visual Change: 751
Cumulative Layout Shift: 0.018517047543998
Observed First Visual Change Ts: 5302762996760
Interactive: 4719
Observed First Meaningful Paint Ts: 5302765757682
Speed Index: 3502
Observed Last Visual Change Ts: 5302767396760
Largest Contentful Paint: 3668
Observed Dom Content Loaded Ts: 5302764753208
Observed Speed Index Ts: 5302765166742
First Contentful Paint: 1110
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 0 ms
Wasted Miliseconds: 0
Wasted Bytes: 535307
501916011.1363032300306801.68
Text URL Type Transfer Size Blocking Time Main Thread Time
Other Google APIs/SDKshttps://developers.google.com/apis-explorer/#p/link
Google Fontshttps://fonts.google.com/link
Google/Doubleclick Adshttps://www.doubleclickbygoogle.com/link
blue-dark
4
info-circle
metrics
metrics :
Observed Load Ts: 1012602062026
Observed Cumulative Layout Shift Main Frame: 0.016726684570313
Cumulative Layout Shift Main Frame: 0.016726684570313
Observed First Contentful Paint Ts: 1012601820032
Observed Speed Index: 1143
Observed Load: 1265
Observed Largest Contentful Paint: 1145
Observed Largest Contentful Paint All Frames: 1145
First Meaningful Paint: 5741
Total Cumulative Layout Shift: 0.016726684570313
Observed Dom Content Loaded: 898
Observed Trace End: 3576
Observed Cumulative Layout Shift: 0.016726684570313
Observed Navigation Start Ts: 1012600797305
Observed First Contentful Paint All Frames: 1023
Observed Largest Contentful Paint All Frames Ts: 1012601942653
Observed Trace End Ts: 1012604373603
Observed Total Cumulative Layout Shift: 0.016726684570313
Observed First Paint Ts: 1012601551198
Total Blocking Time: 799
Observed Largest Contentful Paint Ts: 1012601942653
Observed First Meaningful Paint: 1023
Observed First Contentful Paint: 1023
Observed Navigation Start: 0
Observed First Contentful Paint All Frames Ts: 1012601820032
Observed Last Visual Change: 3196
Observed Time Origin Ts: 1012600797305
Observed Time Origin: 0
Observed First Paint: 754
Max Potential FID: 420
Observed First Visual Change: 747
Cumulative Layout Shift: 0.016726684570313
Observed First Visual Change Ts: 1012601544305
Interactive: 11164
Observed First Meaningful Paint Ts: 1012601820032
Speed Index: 6105
Observed Last Visual Change Ts: 1012603993305
Largest Contentful Paint: 10005
Observed Dom Content Loaded Ts: 1012601695114
Observed Speed Index Ts: 1012601939969
First Contentful Paint: 5640
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
lhId selector nodeLabel
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: 420 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
exclamation-circle
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: 0.36

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. 4.7 s DESKTOP 1.1 s Score: 0.81 Learn More

OK, but consider improvement
1.1s

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. 10.2 s DESKTOP 5.3 s Learn More

Much more than recommended
4.7s

Speed Index

Speed Index shows how quickly the contents of a page are visibly populated. A good user experience is 1.3s or less. 4.7 s DESKTOP 4.1 s Score: 0.17 Learn More

Much more than recommended
3.5s

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

Much more than recommended
1100ms

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.

Much more than recommended
3.7s

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!
0.019

Total Page Size - 3.0 MB

JS
1.7 MB

JavaScript

IMG
686.2 KB

Images

HTML
548.1 KB

HTML

Fonts

CSS Stylesheets

Other

Media

Total Page Requests - 70

JS
15.71%

JavaScript

IMG
52.86%

Images

HTML
2.86%

HTML

Font
5.71%

Fonts

CSS
10.00%

CSS Stylesheets

Other
12.86%

Other

Video
0.00%

Media

HTML
JS
CSS
IMG
Video
Font
Other

Response Codes:

Response Code Responses
301 2
200 66
204 1
302 1

  • Lab Data
  • First Meaningful Paint 4.7 s DESKTOP 3.6 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: 0.04
    Score Display Mode: numeric
    Display Value: 3.4 s
    Numeric Value: 3367.5
  • Max Potential First Input Delay 420 ms DESKTOP 880 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: 0.02
    Score Display Mode: numeric
    Display Value: 710 ms
    Numeric Value: 708

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: 0.11
37 resources found
URL
1 https://i.ytimg.com/vi/k8MlLjhtrdQ/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq... 0.08 hours 0.089 MB 0.04
2 https://i.ytimg.com/vi/nM89Wl03Q4g/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq... 0.08 hours 0.069 MB 0.04
3 https://i.ytimg.com/vi/mLUTB5TwM4o/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq... 0.08 hours 0.057 MB 0.04
4 https://i.ytimg.com/vi/NXvUhVn_Kns/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq... 0.08 hours 0.054 MB 0.04
5 https://i.ytimg.com/vi/4itx6mXEJ6c/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq... 0.08 hours 0.017 MB 0.04
6 https://static.doubleclick.net/instream/ad_status.js 0.25 hours 0.001 MB 0.11
7 https://www.gstatic.com/youtube/img/promos/growth/dc5b9cb12d4293961921... 0.83 hours 0.022 MB 0.18
8 https://www.gstatic.com/youtube/img/promos/growth/c117e153c0f61ba6e181... 0.83 hours 0.009 MB 0.18
9 https://i.ytimg.com/vi/6-8Yf3-Zcno/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq... 2.00 hours 0.067 MB 0.25
10 https://i.ytimg.com/vi/ZJ7FKEdFwJw/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq... 2.00 hours 0.055 MB 0.25
11 https://i.ytimg.com/vi/0BVrqUjbSOc/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq... 2.00 hours 0.045 MB 0.25
12 https://i.ytimg.com/vi/J8Oi3hMS5Zw/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq... 2.00 hours 0.043 MB 0.25
13 https://i.ytimg.com/vi/tXjHb5QmDV0/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq... 2.00 hours 0.028 MB 0.25
14 https://i.ytimg.com/vi/B_UcvC0DQ6U/hqdefault.jpg?sqp=-oaymwEcCOADEI4CS... 2.00 hours 0.027 MB 0.25
15 https://i.ytimg.com/vi/gXUkbvei11Q/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq... 2.00 hours 0.020 MB 0.25
16 https://yt3.ggpht.com/ytc/AKedOLR5SQ5Zw3I42B_n_V5vlE0_plbViOIqrkryW1TR... 24.00 hours 0.006 MB 0.6
17 https://yt3.ggpht.com/ytc/AKedOLSdjk3yfmEPE7rf2rQTHWvSMx-2sQ59M4kRh9SW... 24.00 hours 0.005 MB 0.6
18 https://yt3.ggpht.com/ytc/AKedOLQRsZe0aZQHFIV1UYZR4JQsg1kA80eOcVd9qmva... 24.00 hours 0.005 MB 0.6
19 https://yt3.ggpht.com/ytc/AKedOLRspawq_9jPo7BBS56l0IAeYXOFWPe5yAK4kCRR... 24.00 hours 0.004 MB 0.6
20 https://yt3.ggpht.com/ytc/AAUvwnj2q8vufSasVXh8Z8O3ktFUVQ2MzHWLJ4PyTEIS... 24.00 hours 0.004 MB 0.6
21 https://yt3.ggpht.com/iD3VhoVhYPSySaZee3dWXFhszcvVd09jb1hea9VkIZD9C3eX... 24.00 hours 0.004 MB 0.6
22 https://yt3.ggpht.com/ytc/AKedOLSspMEfnvI5XQx6qGQo3qsML6yywh3nwkOMD4uv... 24.00 hours 0.003 MB 0.6
23 https://yt3.ggpht.com/ytc/AKedOLQ6HvNjDjiFuKKRKMm4tr1nbe1P3sNIJ5L3fV7C... 24.00 hours 0.003 MB 0.6
24 https://yt3.ggpht.com/wDc176BQAmfNLWc_WileuUUbqQHRWxBbg-OJuM-qbqFNrLVk... 24.00 hours 0.003 MB 0.6
25 https://yt3.ggpht.com/ytc/AKedOLQyBKBEyT9H2wewYdj5iehfaZQIf-kfeNnW8-yp... 24.00 hours 0.003 MB 0.6
26 https://yt3.ggpht.com/ytc/AKedOLQJWg6EVUXiN4mosLRquWgWHsRYrwckO0DoRwZc... 24.00 hours 0.003 MB 0.6
27 https://yt3.ggpht.com/ytc/AKedOLShQf5GGxZE8iQ-Wk1fplpaeMxP_7ITDmNHvXzd... 24.00 hours 0.003 MB 0.6
28 https://yt3.ggpht.com/ytc/AKedOLTz9MCRePiXBO1L3v0XagyL3C-prM8JbVw2SNui... 24.00 hours 0.002 MB 0.6
29 https://yt3.ggpht.com/vNBcaCSHOcYDgva6GkjD3vS5VEqbzUxCHSOibTzUnbvN5PaU... 24.00 hours 0.002 MB 0.6
30 https://yt3.ggpht.com/GjVTG-W28keZROMHorBEf7oBruh7xJaidX4UMBlom9HPUAhn... 24.00 hours 0.002 MB 0.6
31 https://yt3.ggpht.com/sDPfEwiLE7u1r8l32jNa_F5RiV-_Ixq9vTiNAZYuIbN-iqlJ... 24.00 hours 0.002 MB 0.6
32 https://yt3.ggpht.com/WFDiWoAXFWRVp9B61Luteur_PgEH4X-LgSNAMAluf7sYY5hM... 24.00 hours 0.002 MB 0.6
33 https://yt3.ggpht.com/GSyneeOVpbdAhfzmJCuHzzbjPExDzJbXpY3Slg67lQmm7Gu_... 24.00 hours 0.002 MB 0.6
34 https://yt3.ggpht.com/8D6JlsnvwDZFMdcbjqVji82kggP3aXXbO-yBD0RFrKlp4G1z... 24.00 hours 0.002 MB 0.6
35 https://yt3.ggpht.com/hH3tBD_SUiGxFJ9vrBlcSzMuY8pxlmtjT70M2VKC9WqYgsWe... 24.00 hours 0.002 MB 0.6
36 https://yt3.ggpht.com/5IrP7XWzXOjZlwGK5dEgANyCOr1PMpUYaTMvVjPFyUe6mCIx... 24.00 hours 0.002 MB 0.6
37 https://yt3.ggpht.com/6lo97rUTO7xhIBXZqLiaW2kA_eMBIEmqc27EqlKLyE4nAY-y... 24.00 hours 0.002 MB 0.6
0.54 MB





Results

Results - Audits

SI (Speed Index) MS 15%: 3502
LCP (Largest Contentful Paint) MS 25%: 3667.5
TTI (Time to Interactive) MS 15%: 4719
TBT (Total Blocking Time) MS 25%: 1098.5
CLS (Cumulative Layout Shift) MS 5%: 0.0185

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: 1
Score Display Mode: numeric
Display Value: Potential savings of 13 KiB
Numeric Value: 0

Audits - Uses Optimized Images - Overall Savings Bytes

Overall Savings Bytes: 13813
Overall Savings (ms): 0
Type: opportunity

Audits - Uses Optimized Images - Details

Data:
  url: https://www.gstatic.com/youtube/img/promos/growth/dc5b9cb12d4293961921b0966a5c5d1217dceeea689d8dd762b9f6de3d4b8ce5_2560x520.jpeg
  wastedBytes: 13813
  fromProtocol: 1
  isCrossOrigin: 1
  totalBytes: 22017

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: Other Google APIs/SDKs
   URL: https://developers.google.com/apis-explorer/#p/
   Type: link
   Main Thread Time: 7.339
   Transfer Size: 502767
   Blocking Time: 0
Item Detail:
   Text: Google Fonts
   URL: https://fonts.google.com/
   Type: link
   Main Thread Time: 3.536
   Transfer Size: 65862
   Blocking Time: 0
Item Detail:
   Text: Google CDN
   URL: https://developers.google.com/speed/libraries/
   Type: link
   Main Thread Time: 0
   Transfer Size: 32239
   Blocking Time: 0
Item Detail:
   Text: Google/Doubleclick Ads
   URL: https://www.doubleclickbygoogle.com/
   Type: link
   Main Thread Time: 0.304
   Transfer Size: 3055
   Blocking Time: 0
Type: table
Wasted Bytes: 603923
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: 0.67
Score Display Mode: numeric
Display Value: Potential savings of 450 ms
Numeric Value: 449
Type: opportunity
Overall Savings (ms): 449

Audits - Render Blocking Resources - Details

Data item:
   Total Bytes: 1699
   URL: https://fonts.googleapis.com/css?family=Roboto:500,300,700,400|YouTube+Sans:400,500,700
   Wasted Time (ms): 230
Data item:
   Total Bytes: 15777
   URL: https://www.youtube.com/s/desktop/a466a8fe/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js
   Wasted Time (ms): 80

Audits - Render Blocking Resources - Headings

Heading Item:
   Label: URL
   Value Type: url
   Key: url
Heading Item:
   Label: Transfer Size
   Value Type: bytes
   Key: totalBytes
Heading Item:
   Label: Potential Savings
   Value Type: timespanMs
   Key: wastedMs

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
(
    [overallSavingsBytes] => 0
    [type] => opportunity
    [overallSavingsMs] => 0
    [headings] => Array
        (
        )

    [items] => Array
        (
        )

)

Audits - Mainthread Work Breakdown

ID: mainthread-work-breakdown
Title: Minimize 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: 0.49
Score Display Mode: numeric
Display Value: 4.0 s
Numeric Value: 4040.52

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: 2613.488
   Group: scriptEvaluation

Heading Items:
   Group Label: Style & Layout
   Duration: 373.587
   Group: styleLayout

Heading Items:
   Group Label: Other
   Duration: 286.423
   Group: other

Heading Items:
   Group Label: Script Parsing & Compilation
   Duration: 235.91
   Group: scriptParseCompile

Heading Items:
   Group Label: Garbage Collection
   Duration: 196.202
   Group: garbageCollection

Heading Items:
   Group Label: Rendering
   Duration: 194.964
   Group: paintCompositeRender

Heading Items:
   Group Label: Parse HTML & CSS
   Duration: 139.946
   Group: parseHTML

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: Potential savings of 24 KiB
Numeric Value: 0
Overall Savings (ms): 0
Overall Savings Bytes: 24434
Type: opportunity

Audits - Unminified CSS - Details


Unminified CSS Items:
   Total Bytes: 244454
   Wasted Bytes: 24434
   Wasted Percent: 9.9954863514211
   URL: :not(.style-scope)[hidden] { display: none !important; } ...

Audits - Unused CSS Rules

ID: unused-css-rules
Title: Reduce unused CSS
Description: Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn more](https://web.dev/unused-css-rules/).
Score: 1
Score Display Mode: numeric
Display Value: Potential savings of 267 KiB
Numeric Value: 0
Type: opportunity
Overall Savings (ms): 0
Overall Savings Bytes: 273811

Audits - Unused CSS Rules - Details


Unused CSS Rules Items:
   Total Bytes: 244454
   Wasted Bytes: 227426
   Wasted Percent: 93.034167162396

Unused CSS Rules Items:
   Total Bytes: 46385
   Wasted Bytes: 46385
   Wasted Percent: 100

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: 0.46
Score Display Mode: numeric
Display Value: 4.7 s
Numeric Value: 4719

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: informative
Display Value: 15 chains found
Longest Chain Transfer Size: 46385
Longest Chain Duration: 3900.1520005986
Longest Chain Length: 5
Type: criticalrequestchain

Audits - Critical Request Chains - Details


Critical Request Chains Request:
   Request Start Time: 5302762.247121
   Request Response Received Time: 5302762.267775
   Request End Time: 5302762.268506
   Request URL: http://youtube.com/
   Request Transfer Size: 400
   Critical Request Chains Children:
   Critical Request Chains Child:
    request startTime: 5302762.269024
     Request Response Received Time: 5302762.331892
     Request End Time: 5302762.332557
     Request URL: https://youtube.com/
     Request Transfer Size: 794

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: 5152
Timestamp: 5302767397486
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: 0.22
Score Display Mode: numeric
Display Value: 3.7 s
Numeric Value: 3667.5

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: 3173894
   Max RTT: 0.0004382684577751
   Throughput: 190697747873.4
   Num Tasks Over 10ms: 49
   Num Tasks Over 500ms: 2
   Total Task Time: 4040.52
   Num Tasks: 1569
   Num Tasks Over 100ms: 4
   Num Tasks Over 50ms: 8
   RTT: 0.0004382684577751
   Num Tasks Over 25ms: 19
   Num Stylesheets: 7
   Num Scripts: 11
   Main Document Transfer Size: 59527
   Num Requests: 70
   Num Fonts: 4

Audits - Uses Webp Images

ID: Unknown
Title: Unknown
Description: Unknown
Score: Unknown
Score Display Mode: Unknown
Display Value: Unknown
Numeric Value: Unknown
Warnings (print_r): Unknown
Type: Unknown
Overall Savings Bytes: Unknown
Overall Savings (ms): Unknown

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: 70 requests • 3,100 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: 70
   Transfer Size: 3173894
Resource Summary Items:
   Resource Type: script
   Label: Script
   Request Count: 11
   Transfer Size: 1784026
Resource Summary Items:
   Resource Type: image
   Label: Image
   Request Count: 37
   Transfer Size: 702648
Resource Summary Items:
   Resource Type: document
   Label: Document
   Request Count: 2
   Transfer Size: 561242
Resource Summary Items:
   Resource Type: font
   Label: Font
   Request Count: 4
   Transfer Size: 61075
Resource Summary Items:
   Resource Type: stylesheet
   Label: Stylesheet
   Request Count: 7
   Transfer Size: 54907
Resource Summary Items:
   Resource Type: other
   Label: Other
   Request Count: 9
   Transfer Size: 9996
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: 49
   Transfer Size: 1273531

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 530 ms
Numeric Value: 533.632
Type: opportunity
Overall Savings (ms): 433.632

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
        (
            [key] => url
            [text] => URL
            [itemType] => url
        )

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

)

Items (print_r):
Array
(
    [0] => Array
        (
            [url] => https://fonts.gstatic.com/s/roboto/v27/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
            [wastedMs] => 3.2979995012283
        )

    [1] => Array
        (
            [wastedMs] => 3.0669998377562
            [url] => https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmEU9fBBc4AMP6lQ.woff2
        )

    [2] => Array
        (
            [wastedMs] => 3.4860000014305
            [url] => https://fonts.gstatic.com/s/youtubesans/v8/Qw38ZQNGEDjaO2m6tqIqX5E-AVS5_rSejo46_PCTRspJ0OosolrBEJL3HO_T7fHoCVHx.woff2
        )

    [3] => Array
        (
            [url] => https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmWUlfBBc4AMP6lQ.woff2
            [wastedMs] => 30.58800008148
        )

)

Audits - Bootup Time

ID: bootup-time
Title: Reduce 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: 0.61
Score Display Mode: numeric
Display Value: 2.8 s
Numeric Value: 2831.185
Type: table
Wasted Time (ms): 2831.185

Audits - Bootup Time - Items

Bootup Time - Items:
   Total: 1455.707
   Scripting: 1048.441
   Script Parse Compile: 1.51
   URL: https://www.youtube.com/s/desktop/a466a8fe/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js
Bootup Time - Items:
   Total: 1272.573
   Scripting: 849.095
   Script Parse Compile: 163.541
   URL: https://www.youtube.com/s/desktop/a466a8fe/jsbin/desktop_polymer.vflset/desktop_polymer.js
Bootup Time - Items:
   Total: 653.172
   Scripting: 308.883
   Script Parse Compile: 26.019
   URL: https://www.youtube.com/
Bootup Time - Items:
   Total: 248.465
   Scripting: 203.925
   Script Parse Compile: 2.216
   URL: https://www.youtube.com/s/desktop/a466a8fe/jsbin/webcomponents-sd.vflset/webcomponents-sd.js
Bootup Time - Items:
   Total: 227.288
   Scripting: 181.738
   Script Parse Compile: 35.071
   URL: https://www.youtube.com/s/player/11aba956/player_ias.vflset/en_US/base.js
Bootup Time - Items:
   Total: 145.378
   Scripting: 10.521
   Script Parse Compile: 0.225
   URL: Unattributable

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: 4719
Type: debugdata
Speed Index: 3502
Observed First Meaningful Paint (ts): 5302765757682
First Meaningful Paint: 3368
Observed First Contentful Paint: 763
Observed Navigation Start (ts): 5302762245760
Cumulative Layout Shift: 0.018517047543998
Observed Largest Contentful Paint: 3512
Observed Trace End (ts): 5302768629930
Observed Dom Content Loaded: 2507
Observed Cumulative Layout Shift: 0.018517047543998
Observed Dom Content Loaded (ts): 5302764753208
Largest Contentful Paint: 3668
Observed First Visual Change (ts): 5302762996760
Observed Speed Index: 2921
Observed Last Visual Change (ts): 5302767396760
Observed Largest Contentful Paint (ts): 5302765757682
Max Potential FID: 708
Observed Navigation Start: 0
Observed Last Visual Change: 5151
Observed First Paint: 763
Estimated Input Latency: Unknown
Observed Load (ts): 5302765883954
First Contentful Paint: 1110
Observed Speed Index (ts): 5302765166742
Observed First Meaningful Paint: 3512
Total Blocking Time: 1099
Observed Load: 3638
Observed First Contentful Paint (ts): 5302763008402
First CPU Idle: Unknown
Observed First Paint (ts): 5302763008402
Observed Trace End: 6384
Interactive: 4719
Observed First Visual Change: 751
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: 0.04
Score Display Mode: numeric
Display Value: 1,100 ms
Numeric Value: 1098.5

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: Avoid 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: 0.79
Score Display Mode: numeric
Display Value: Total size was 3,100 KiB
Numeric Value: 3173894
Type: table

Audits - Total Byte Weight - Items

Total Byte Weight - Items:
   Total Bytes: 1218874
   URL: https://www.youtube.com/s/desktop/a466a8fe/jsbin/desktop_polymer.vflset/desktop_polymer.js
Total Byte Weight - Items:
   Total Bytes: 501715
   URL: https://accounts.google.com/ServiceLogin?service=youtube&uilel=3&passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Ddesktop%26hl%3Den%26next%3D%252Fsignin_passive%26feature%3Dpassive&hl=en
Total Byte Weight - Items:
   Total Bytes: 496103
   URL: https://www.youtube.com/s/player/11aba956/player_ias.vflset/en_US/base.js
Total Byte Weight - Items:
   Total Bytes: 92862
   URL: https://i.ytimg.com/vi/k8MlLjhtrdQ/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAeq3It1UI_bYpKD4CYegHytXZKkA
Total Byte Weight - Items:
   Total Bytes: 72868
   URL: https://i.ytimg.com/vi/nM89Wl03Q4g/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAuT5g3outydP7xJ3z0jvwfLAU2DQ
Total Byte Weight - Items:
   Total Bytes: 70412
   URL: https://i.ytimg.com/vi/6-8Yf3-Zcno/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAA7vxBGdXAJElcsrzbWCMsqCXVcw
Total Byte Weight - Items:
   Total Bytes: 60132
   URL: https://i.ytimg.com/vi/mLUTB5TwM4o/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCUVtfz1YG71Z6IMFEgbmSE1tux0g
Total Byte Weight - Items:
   Total Bytes: 59527
   URL: https://www.youtube.com/
Total Byte Weight - Items:
   Total Bytes: 57345
   URL: https://i.ytimg.com/vi/ZJ7FKEdFwJw/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLB_5bWrYSepTho7O_EMetW3xOIj0g
Total Byte Weight - Items:
   Total Bytes: 56590
   URL: https://i.ytimg.com/vi/NXvUhVn_Kns/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDu__5fuMfELdkVFPBYiks829k3AQ

Audits - Unused Javascript

ID: unused-javascript
Title: Reduce unused JavaScript
Description: Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn more](https://web.dev/unused-javascript/).
Score: 0.52
Score Display Mode: numeric
Display Value: Potential savings of 838 KiB
Numeric Value: 720
Type: opportunity
Overall Savings (ms): 720
Overall Savings Bytes: 858310

Audits - Unused Javascript - Items

Unused Javascript Items:
   Wasted Percent: 40.622709636351
   Total Bytes: 1218874
   Wasted Bytes: 495140
   URL: https://www.youtube.com/s/desktop/a466a8fe/jsbin/desktop_polymer.vflset/desktop_polymer.js
Unused Javascript Items:
   Wasted Percent: 73.204609922319
   Total Bytes: 496103
   Wasted Bytes: 363170
   URL: https://www.youtube.com/s/player/11aba956/player_ias.vflset/en_US/base.js

Audits - No Document Write

ID: no-document-write
Title: Avoids `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: 1
Score Display Mode: binary
Type: table
Headings (print_r):
Array
(
)

Items (print_r):
Array
(
)

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: 0.73
Score Display Mode: numeric
Numeric Value: 340
Type: opportunity
Overall Savings (ms): 340
Headings (print_r):
Array
(
    [0] => Array
        (
            [label] => URL
            [key] => url
            [valueType] => url
        )

    [1] => Array
        (
            [valueType] => timespanMs
            [key] => wastedMs
            [label] => Time Spent
        )

)

Items (print_r):
Array
(
    [0] => Array
        (
            [url] => http://youtube.com/
            [wastedMs] => 190
        )

    [1] => Array
        (
            [url] => https://youtube.com/
            [wastedMs] => 150
        )

    [2] => Array
        (
            [url] => https://www.youtube.com/
            [wastedMs] => 0
        )

)

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: 1
Score Display Mode: numeric
Display Value: Potential savings of 527 KiB
Numeric Value: 0
Type: opportunity
Overall Savings Bytes: 539248
Overall Savings (ms): 0
Warnings (print_r): Unknown

Audits - Uses Responsive Images - Items

Uses Responsive Images - Items:
   Total Bytes: 92328
   Wasted Bytes: 80925
Uses Responsive Images - Items:
   Total Bytes: 72336
   Wasted Bytes: 63402
Uses Responsive Images - Items:
   Total Bytes: 69764
   Wasted Bytes: 61148
Uses Responsive Images - Items:
   Total Bytes: 59608
   Wasted Bytes: 52246
Uses Responsive Images - Items:
   Total Bytes: 56812
   Wasted Bytes: 49795
Uses Responsive Images - Items:
   Total Bytes: 56056
   Wasted Bytes: 49133
Uses Responsive Images - Items:
   Total Bytes: 46790
   Wasted Bytes: 41011
Uses Responsive Images - Items:
   Total Bytes: 45056
   Wasted Bytes: 39491
Uses Responsive Images - Items:
   Total Bytes: 28852
   Wasted Bytes: 25289
Uses Responsive Images - Items:
   Total Bytes: 28060
   Wasted Bytes: 20227
Uses Responsive Images - Items:
   Total Bytes: 20816
   Wasted Bytes: 18245
Uses Responsive Images - Items:
   Total Bytes: 22017
   Wasted Bytes: 16513
Uses Responsive Images - Items:
   Total Bytes: 17086
   Wasted Bytes: 14976
Uses Responsive Images - Items:
   Total Bytes: 9129
   Wasted Bytes: 6847

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 http://youtube.com/ 0.00 21.39 0.39 KB 0.00 KB 301 application/binary
2 https://youtube.com/ 21.90 85.44 0.78 KB 0.00 KB 301 application/binary
3 https://www.youtube.com/ 86.06 618.70 58.13 KB 513.68 KB 200 text/html Document
4 https://i.ytimg.com/generate_204 634.02 638.07 0.25 KB 0.00 KB 204 text/plain Other
5 https://www.youtube.com/s/desktop/a466a8fe/jsbin/desktop_pol... 634.52 732.18 1,190.31 KB 7,652.17 KB 200 text/javascript Script
6 https://www.youtube.com/s/desktop/a466a8fe/jsbin/web-animati... 636.88 642.65 15.41 KB 49.44 KB 200 text/javascript Script
7 https://www.youtube.com/s/desktop/a466a8fe/jsbin/custom-elem... 637.42 641.77 1.34 KB 1.93 KB 200 text/javascript Script
8 https://www.youtube.com/s/desktop/a466a8fe/jsbin/webcomponen... 637.96 643.49 21.46 KB 71.62 KB 200 text/javascript Script
9 https://www.youtube.com/s/desktop/a466a8fe/jsbin/scheduler.v... 644.57 647.69 3.11 KB 6.68 KB 200 text/javascript Script
10 https://www.youtube.com/s/desktop/a466a8fe/jsbin/www-i18n-co... 644.87 648.17 2.08 KB 4.15 KB 200 text/javascript Script
11 https://www.youtube.com/s/desktop/a466a8fe/jsbin/www-tamperi... 645.27 649.86 4.06 KB 9.63 KB 200 text/javascript Script
12 https://www.youtube.com/s/desktop/a466a8fe/jsbin/spf.vflset/... 645.65 651.25 13.58 KB 37.74 KB 200 text/javascript Script
13 https://www.youtube.com/s/desktop/a466a8fe/jsbin/network.vfl... 646.01 650.41 5.76 KB 13.66 KB 200 text/javascript Script
14 https://fonts.googleapis.com/css?family=Roboto:500,300,700,4... 646.27 663.26 1.66 KB 13.40 KB 200 text/css Stylesheet
15 https://www.youtube.com/s/desktop/a466a8fe/cssbin/www-main-d... 646.47 651.70 1.29 KB 2.78 KB 200 text/css Stylesheet
16 https://www.youtube.com/s/desktop/a466a8fe/cssbin/www-onepic... 646.76 650.81 0.84 KB 0.82 KB 200 text/css Stylesheet
17 https://accounts.google.com/ServiceLogin?service=youtube&uil... 719.93 968.73 489.96 KB 0.00 KB 200 text/html Document
18 https://fonts.gstatic.com/s/roboto/v27/KFOmCnqEu92Fr1Mu4mxKK... 744.67 747.97 11.51 KB 10.77 KB 200 font/woff2 Font
19 https://www.youtube.com/s/desktop/a466a8fe/cssbin/www-main-d... 745.75 748.95 1.52 KB 4.79 KB 200 text/css Stylesheet
20 https://fonts.googleapis.com/css?family=Roboto:400,300,300it... 1,421.15 1,435.93 1.69 KB 16.04 KB 200 text/css Stylesheet
21 https://fonts.googleapis.com/css?family=Roboto+Mono:400,700 1,421.90 1,433.63 1.33 KB 4.09 KB 200 text/css Stylesheet
22 https://googleads.g.doubleclick.net/pagead/id 2,010.08 2,474.48 1.04 KB 0.00 KB 302 text/html
23 https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmEU9fB... 2,311.67 2,314.74 11.53 KB 10.79 KB 200 font/woff2 Font
24 https://fonts.gstatic.com/s/youtubesans/v8/Qw38ZQNGEDjaO2m6t... 2,429.12 2,432.61 25.07 KB 24.33 KB 200 font/woff2 Font
25 https://www.gstatic.com/youtube/img/promos/growth/dc5b9cb12d... 2,448.87 2,452.99 22.02 KB 21.50 KB 200 image/jpeg Image
26 https://www.youtube.com/youtubei/v1/guide?key=AIzaSyAO_FJ2Sl... 2,450.74 2,478.76 3.69 KB 28.79 KB 200 application/json Fetch
27 https://www.google.com/pagead/lvz?evtid=AKB78chScfFWfK29haLb... 2,456.11 2,462.85 1.03 KB 0.04 KB 200 image/gif Image
28 https://www.youtube.com/getDatasyncIdsEndpoint 2,456.76 2,480.32 0.80 KB 0.04 KB 200 application/json Fetch
29 https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmWUlfB... 2,462.70 2,493.29 11.53 KB 10.79 KB 200 font/woff2 Font
30 https://googleads.g.doubleclick.net/pagead/id?slf_rd=1 2,474.75 2,479.25 1.31 KB 0.11 KB 200 application/json XHR
31 https://i.ytimg.com/vi/gXUkbvei11Q/hq720.jpg?sqp=-oaymwEcCNA... 3,320.02 3,324.69 20.84 KB 20.33 KB 200 image/webp Image
32 https://yt3.ggpht.com/wDc176BQAmfNLWc_WileuUUbqQHRWxBbg-OJuM... 3,320.35 3,330.36 3.40 KB 2.77 KB 200 image/jpeg Image
33 https://i.ytimg.com/vi/B_UcvC0DQ6U/hqdefault.jpg?sqp=-oaymwE... 3,320.58 3,328.66 27.92 KB 27.40 KB 200 image/webp Image
34 https://yt3.ggpht.com/iD3VhoVhYPSySaZee3dWXFhszcvVd09jb1hea9... 3,320.86 3,324.02 3.65 KB 3.00 KB 200 image/jpeg Image
35 https://i.ytimg.com/vi/J8Oi3hMS5Zw/hq720.jpg?sqp=-oaymwEcCNA... 3,321.08 3,327.33 44.52 KB 44.00 KB 200 image/webp Image
36 https://yt3.ggpht.com/ytc/AKedOLRspawq_9jPo7BBS56l0IAeYXOFWP... 3,321.33 3,325.11 4.50 KB 3.86 KB 200 image/jpeg Image
37 https://i.ytimg.com/vi/ZJ7FKEdFwJw/hq720.jpg?sqp=-oaymwEcCNA... 3,321.66 3,328.27 56.00 KB 55.48 KB 200 image/webp Image
38 https://yt3.ggpht.com/ytc/AKedOLShQf5GGxZE8iQ-Wk1fplpaeMxP_7... 3,322.30 3,326.31 2.60 KB 1.96 KB 200 image/jpeg Image
39 https://www.gstatic.com/youtube/img/promos/growth/c117e153c0... 3,322.72 3,326.88 9.46 KB 8.92 KB 200 image/png Image
40 https://www.youtube.com/youtubei/v1/feedback?key=AIzaSyAO_FJ... 3,383.95 3,438.68 1.02 KB 1.78 KB 200 application/json Fetch
41 https://i.ytimg.com/vi/tXjHb5QmDV0/hq720.jpg?sqp=-oaymwEcCNA... 3,556.27 3,565.18 28.70 KB 28.18 KB 200 image/webp Image
42 https://yt3.ggpht.com/ytc/AAUvwnj2q8vufSasVXh8Z8O3ktFUVQ2MzH... 3,556.48 3,617.57 4.37 KB 3.73 KB 200 image/jpeg Image
43 https://i.ytimg.com/vi/0BVrqUjbSOc/hq720.jpg?sqp=-oaymwEcCNA... 3,556.68 3,566.25 46.34 KB 45.69 KB 200 image/webp Image
44 https://yt3.ggpht.com/ytc/AKedOLSspMEfnvI5XQx6qGQo3qsML6yywh... 3,556.97 3,563.37 3.57 KB 2.93 KB 200 image/jpeg Image
45 https://i.ytimg.com/vi/6-8Yf3-Zcno/hq720.jpg?sqp=-oaymwEcCNA... 3,557.23 3,570.27 68.76 KB 68.13 KB 200 image/webp Image
46 https://yt3.ggpht.com/ytc/AKedOLQ6HvNjDjiFuKKRKMm4tr1nbe1P3s... 3,557.49 3,565.76 3.42 KB 2.78 KB 200 image/jpeg Image
47 https://i.ytimg.com/vi/mLUTB5TwM4o/hq720.jpg?sqp=-oaymwEcCNA... 3,557.84 3,567.62 58.72 KB 58.21 KB 200 image/webp Image
48 https://yt3.ggpht.com/ytc/AKedOLTz9MCRePiXBO1L3v0XagyL3C-prM... 3,558.39 3,570.73 2.19 KB 1.57 KB 200 image/jpeg Image
49 https://i.ytimg.com/vi/nM89Wl03Q4g/hq720.jpg?sqp=-oaymwEcCNA... 3,558.66 3,569.39 71.16 KB 70.64 KB 200 image/webp Image
50 https://yt3.ggpht.com/ytc/AKedOLSdjk3yfmEPE7rf2rQTHWvSMx-2sQ... 3,558.91 3,566.88 5.56 KB 4.92 KB 200 image/jpeg Image
51 https://i.ytimg.com/vi/4itx6mXEJ6c/hq720.jpg?sqp=-oaymwEcCNA... 3,559.15 3,568.87 17.21 KB 16.69 KB 200 image/webp Image
52 https://yt3.ggpht.com/ytc/AKedOLQRsZe0aZQHFIV1UYZR4JQsg1kA80... 3,559.50 3,568.08 4.86 KB 4.22 KB 200 image/jpeg Image
53 https://i.ytimg.com/vi/k8MlLjhtrdQ/hq720.jpg?sqp=-oaymwEcCNA... 3,559.97 3,569.85 90.69 KB 90.16 KB 200 image/webp Image
54 https://yt3.ggpht.com/ytc/AKedOLR5SQ5Zw3I42B_n_V5vlE0_plbViO... 3,560.39 3,568.46 5.92 KB 5.29 KB 200 image/jpeg Image
55 https://i.ytimg.com/vi/NXvUhVn_Kns/hq720.jpg?sqp=-oaymwEcCNA... 3,561.10 3,571.14 55.26 KB 54.74 KB 200 image/webp Image
56 https://yt3.ggpht.com/ytc/AKedOLQyBKBEyT9H2wewYdj5iehfaZQIf-... 3,565.63 3,571.65 2.90 KB 2.26 KB 200 image/jpeg Image
57 https://www.youtube.com/youtubei/v1/log_event?alt=json&key=A... 3,714.10 3,752.67 0.50 KB 0.03 KB 200 application/json XHR
58 https://yt3.ggpht.com/hH3tBD_SUiGxFJ9vrBlcSzMuY8pxlmtjT70M2V... 3,850.74 3,856.69 1.91 KB 1.26 KB 200 image/jpeg Image
59 https://yt3.ggpht.com/GjVTG-W28keZROMHorBEf7oBruh7xJaidX4UMB... 3,850.96 3,857.51 2.12 KB 1.47 KB 200 image/jpeg Image
60 https://yt3.ggpht.com/GSyneeOVpbdAhfzmJCuHzzbjPExDzJbXpY3Slg... 3,851.26 3,859.69 2.00 KB 1.36 KB 200 image/jpeg Image
61 https://yt3.ggpht.com/6lo97rUTO7xhIBXZqLiaW2kA_eMBIEmqc27Eql... 3,851.53 3,860.51 1.89 KB 1.24 KB 200 image/jpeg Image
62 https://yt3.ggpht.com/vNBcaCSHOcYDgva6GkjD3vS5VEqbzUxCHSOibT... 3,851.83 3,860.27 2.13 KB 1.49 KB 200 image/jpeg Image
63 https://yt3.ggpht.com/8D6JlsnvwDZFMdcbjqVji82kggP3aXXbO-yBD0... 3,852.09 3,859.97 1.92 KB 1.28 KB 200 image/jpeg Image
64 https://yt3.ggpht.com/WFDiWoAXFWRVp9B61Luteur_PgEH4X-LgSNAMA... 3,852.34 3,860.95 2.01 KB 1.36 KB 200 image/jpeg Image
65 https://yt3.ggpht.com/sDPfEwiLE7u1r8l32jNa_F5RiV-_Ixq9vTiNAZ... 3,853.02 3,861.29 2.08 KB 1.43 KB 200 image/jpeg Image
66 https://yt3.ggpht.com/ytc/AKedOLQJWg6EVUXiN4mosLRquWgWHsRYrw... 3,853.21 3,862.51 2.65 KB 2.01 KB 200 image/jpeg Image
67 https://yt3.ggpht.com/5IrP7XWzXOjZlwGK5dEgANyCOr1PMpUYaTMvVj... 3,854.08 3,867.28 1.89 KB 1.25 KB 200 image/jpeg Image
68 https://www.youtube.com/s/player/11aba956/player_ias.vflset/... 3,867.76 3,896.96 484.48 KB 1,690.73 KB 200 text/javascript Script
69 https://www.youtube.com/s/player/11aba956/www-player-webp.cs... 3,868.04 3,900.15 45.30 KB 323.35 KB 200 text/css Stylesheet
70 https://static.doubleclick.net/instream/ad_status.js 4,320.05 4,323.10 0.64 KB 0.03 KB 200 text/javascript Script
1.87 MB 1.76 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

URL wastedBytes
0.00 KB

Image elements do not have explicit `width` and `height`

Set an explicit width and height on image elements to reduce layout shifts and improve CLS.
Score: 0
0
Image URL Selector
https://i.ytimg.com/vi/k8MlLjhtrdQ/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARU... ytd-thumbnail.style-scope > a#thumbnail > yt-img-shadow.style-scope > img#img
https://i.ytimg.com/vi/nM89Wl03Q4g/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARU... ytd-thumbnail.style-scope > a#thumbnail > yt-img-shadow.style-scope > img#img
https://i.ytimg.com/vi/6-8Yf3-Zcno/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARU... ytd-thumbnail.style-scope > a#thumbnail > yt-img-shadow.style-scope > img#img
https://i.ytimg.com/vi/mLUTB5TwM4o/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARU... ytd-thumbnail.style-scope > a#thumbnail > yt-img-shadow.style-scope > img#img
https://i.ytimg.com/vi/ZJ7FKEdFwJw/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARU... ytd-thumbnail.style-scope > a#thumbnail > yt-img-shadow.style-scope > img#img
https://i.ytimg.com/vi/NXvUhVn_Kns/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARU... ytd-thumbnail.style-scope > a#thumbnail > yt-img-shadow.style-scope > img#img
https://i.ytimg.com/vi/0BVrqUjbSOc/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARU... ytd-thumbnail.style-scope > a#thumbnail > yt-img-shadow.style-scope > img#img
https://i.ytimg.com/vi/J8Oi3hMS5Zw/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARU... ytd-thumbnail.style-scope > a#thumbnail > yt-img-shadow.style-scope > img#img
https://i.ytimg.com/vi/tXjHb5QmDV0/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARU... ytd-thumbnail.style-scope > a#thumbnail > yt-img-shadow.style-scope > img#img
https://i.ytimg.com/vi/B_UcvC0DQ6U/hqdefault.jpg?sqp=-oaymwEcCOADEI4CSFXyq4qpAw4... ytd-thumbnail.style-scope > a#thumbnail > yt-img-shadow.style-scope > img#img
https://i.ytimg.com/vi/gXUkbvei11Q/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARU... ytd-thumbnail.style-scope > a#thumbnail > yt-img-shadow.style-scope > img#img
https://i.ytimg.com/vi/4itx6mXEJ6c/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARU... ytd-thumbnail.style-scope > a#thumbnail > yt-img-shadow.style-scope > img#img
https://www.gstatic.com/youtube/img/promos/growth/c117e153c0f61ba6e181349f4583a3... div.ytd-banner-promo-renderer-layout > h1.ytd-banner-promo-renderer-logo > yt-img-shadow.style-scope > img#img
https://yt3.ggpht.com/ytc/AKedOLR5SQ5Zw3I42B_n_V5vlE0_plbViOIqrkryW1TR=s68-c-k-c... div#details > a#avatar-link > yt-img-shadow#avatar > img#img
https://yt3.ggpht.com/ytc/AKedOLSdjk3yfmEPE7rf2rQTHWvSMx-2sQ59M4kRh9SWSQ=s68-c-k... div#details > a#avatar-link > yt-img-shadow#avatar > img#img
https://yt3.ggpht.com/ytc/AKedOLQRsZe0aZQHFIV1UYZR4JQsg1kA80eOcVd9qmvahKU=s68-c-... div#details > a#avatar-link > yt-img-shadow#avatar > img#img
https://yt3.ggpht.com/ytc/AKedOLRspawq_9jPo7BBS56l0IAeYXOFWPe5yAK4kCRReA=s68-c-k... div#details > a#avatar-link > yt-img-shadow#avatar > img#img
https://yt3.ggpht.com/ytc/AAUvwnj2q8vufSasVXh8Z8O3ktFUVQ2MzHWLJ4PyTEISBw=s68-c-k... div#details > a#avatar-link > yt-img-shadow#avatar > img#img
https://yt3.ggpht.com/iD3VhoVhYPSySaZee3dWXFhszcvVd09jb1hea9VkIZD9C3eXdO_G3F8vo7... div#details > a#avatar-link > yt-img-shadow#avatar > img#img
https://yt3.ggpht.com/ytc/AKedOLSspMEfnvI5XQx6qGQo3qsML6yywh3nwkOMD4uv=s68-c-k-c... div#details > a#avatar-link > yt-img-shadow#avatar > img#img
https://yt3.ggpht.com/ytc/AKedOLQ6HvNjDjiFuKKRKMm4tr1nbe1P3sNIJ5L3fV7C=s68-c-k-c... div#details > a#avatar-link > yt-img-shadow#avatar > img#img
https://yt3.ggpht.com/wDc176BQAmfNLWc_WileuUUbqQHRWxBbg-OJuM-qbqFNrLVkWXQSn1zFeV... div#details > a#avatar-link > yt-img-shadow#avatar > img#img
https://yt3.ggpht.com/ytc/AKedOLQyBKBEyT9H2wewYdj5iehfaZQIf-kfeNnW8-yp_w=s68-c-k... div#details > a#avatar-link > yt-img-shadow#avatar > img#img
https://yt3.ggpht.com/ytc/AKedOLShQf5GGxZE8iQ-Wk1fplpaeMxP_7ITDmNHvXzdvq0=s68-c-... div#details > a#avatar-link > yt-img-shadow#avatar > img#img
https://yt3.ggpht.com/ytc/AKedOLTz9MCRePiXBO1L3v0XagyL3C-prM8JbVw2SNui5A=s68-c-k... div#details > a#avatar-link > yt-img-shadow#avatar > img#img

Avoid enormous network payloads

Large network payloads cost users real money and are highly correlated with long load times.
Score: 0.79
URL Resource Size
https://www.youtube.com/s/desktop/a466a8fe/jsbin/desktop_polymer.vflset/desktop_polymer.js 1,190.31 KB
https://accounts.google.com/ServiceLogin?service=youtube&uilel=3&passive=true&continue=htt... 489.96 KB
https://www.youtube.com/s/player/11aba956/player_ias.vflset/en_US/base.js 484.48 KB
https://i.ytimg.com/vi/k8MlLjhtrdQ/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwA... 90.69 KB
https://i.ytimg.com/vi/nM89Wl03Q4g/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwA... 71.16 KB
https://i.ytimg.com/vi/6-8Yf3-Zcno/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwA... 68.76 KB
https://i.ytimg.com/vi/mLUTB5TwM4o/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwA... 58.72 KB
https://www.youtube.com/ 58.13 KB
https://i.ytimg.com/vi/ZJ7FKEdFwJw/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwA... 56.00 KB
https://i.ytimg.com/vi/NXvUhVn_Kns/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwA... 55.26 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 Other Google APIs/SDKs https://developers.google.com/apis-explorer/#p/ 1 490.98 KB 0 MS 7.339 MS
2 Google Fonts https://fonts.google.com/ 5 64.32 KB 0 MS 3.536 MS
3 Google CDN https://developers.google.com/speed/libraries/ 2 31.48 KB 0 MS 0 MS
4 Google/Doubleclick Ads https://www.doubleclickbygoogle.com/ 0 2.98 KB 0 MS 0.304 MS
8 589.77 KB 0 MS

Reduce unused JavaScript

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
Score: 0.52
Potential savings of 838 KiB
URL Transfer Size Potential Savings Potential Savings %
1 https://www.youtube.com/s/desktop/a466a8fe/jsbin/desktop_polymer.... 1,190.31 KB 483.54 KB 40.62%
2 https://www.youtube.com/s/player/11aba956/player_ias.vflset/en_US... 484.48 KB 354.66 KB 73.20%
838.19 KB

Minimize main-thread work

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
Score: 0.49
Type Time Spent
1 Script Evaluation 2,613.49 MS
2 Style & Layout 373.59 MS
3 Other 286.42 MS
4 Script Parsing & Compilation 235.91 MS
5 Garbage Collection 196.20 MS
6 Rendering 194.96 MS
7 Parse HTML & CSS 139.95 MS

Avoid multiple page redirects

Redirects introduce additional delays before the page can be loaded.
Score: 0.73
Potential savings of 340 ms
URL Potential Savings
1 http://youtube.com/ 190 MS
2 https://youtube.com/ 150 MS
3 https://www.youtube.com/ 0 MS
340 MS

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.
70 requests • 3,100 KiB
Resource Type Requests Transfer Size
1 Script 11 1,742.21 KB
2 Image 37 686.18 KB
3 Document 2 548.09 KB
4 Font 4 59.64 KB
5 Stylesheet 7 53.62 KB
6 Other 9 9.76 KB
7 Media 0 0.00 KB
8 Third-party 49 1,243.68 KB
70 3,100.00 KB

Minify CSS

Minifying CSS files can reduce network payload sizes.
Score: 1
Potential savings of 24 KiB
URL Transfer Size Potential Savings Potential Savings %
1 :not(.style-scope)[hidden] { display: none !important; } .... 238.72 KB 23.86 KB 10.00%
23.86 KB

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: 0.67
Potential savings of 450 ms
URL Transfer Size Potential Savings
1 https://fonts.googleapis.com/css?family=Roboto:500,300,700,400|YouTube+Sans:400,... 1.66 KB 230 MS
2 https://www.youtube.com/s/desktop/a466a8fe/jsbin/web-animations-next-lite.min.vf... 15.41 KB 80 MS
310 MS

Serve images in next-gen formats

Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.
Score: 1
Potential savings of 19 KiB
URL Transfer Size Potential Webp Savings Potential Savings
1 https://www.gstatic.com/youtube/img/promos/growth/dc5b9cb12d... 21.50 KB 0.00 KB 19.09 KB
0.00 KB 19.09 KB

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.youtube.com/s/desktop/a466a8fe/jsbin/desktop_pol... 2515 MS 708 MS
2 https://www.youtube.com/s/desktop/a466a8fe/jsbin/web-animati... 3277 MS 431 MS
3 https://www.youtube.com/s/player/11aba956/player_ias.vflset/... 4661 MS 144 MS
4 https://www.youtube.com/s/player/11aba956/player_ias.vflset/... 4590 MS 71 MS
5 https://www.youtube.com/s/desktop/a466a8fe/jsbin/desktop_pol... 3938 MS 52 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/roboto/v27/KFOmCnqEu92Fr1Mu4mxKK... 3.30 MS
2 https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmEU9fB... 3.07 MS
3 https://fonts.gstatic.com/s/youtubesans/v8/Qw38ZQNGEDjaO2m6t... 3.49 MS
4 https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmWUlfB... 30.59 MS
40 MS

Script Treemap Data

Used for treemap app
URL Resource Size Unused Size
1 https://www.youtube.com/ 477.01 KB 0 KB
2 https://www.youtube.com/s/desktop/a466a8fe/jsbin/web-animati... 49.44 KB 42.15 KB
3 https://www.youtube.com/s/desktop/a466a8fe/jsbin/custom-elem... 1.93 KB 0.10 KB
4 https://www.youtube.com/s/desktop/a466a8fe/jsbin/webcomponen... 71.62 KB 33.50 KB
5 https://www.youtube.com/s/desktop/a466a8fe/jsbin/scheduler.v... 6.68 KB 1.42 KB
6 https://www.youtube.com/s/desktop/a466a8fe/jsbin/www-i18n-co... 4.15 KB 0.13 KB
7 https://www.youtube.com/s/desktop/a466a8fe/jsbin/www-tamperi... 9.63 KB 5.02 KB
8 https://www.youtube.com/s/desktop/a466a8fe/jsbin/spf.vflset/... 37.74 KB 29.78 KB
9 https://www.youtube.com/s/desktop/a466a8fe/jsbin/network.vfl... 13.66 KB 10.61 KB
10 https://www.youtube.com/s/player/11aba956/player_ias.vflset/... 1,690.73 KB 1,237.69 KB
11 https://www.youtube.com/s/desktop/a466a8fe/jsbin/desktop_pol... 7,652.17 KB 3,108.52 KB
12 https://static.doubleclick.net/instream/ad_status.js 0.03 KB 0.00 KB
4,468.92 KB

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 numTasks 1569
2 maxServerLatency
3 throughput 190697747873.4
4 numFonts 4
5 totalTaskTime 4040.52
6 totalByteWeight 3173894
7 numRequests 70
8 numScripts 11
9 numStylesheets 7
10 numTasksOver100ms 4
11 maxRtt 0.0004382684577751
12 numTasksOver25ms 19
13 numTasksOver500ms 2
14 numTasksOver50ms 8
15 numTasksOver10ms 49
16 mainDocumentTransferSize 59527
17 rtt 0.0004382684577751

Efficiently encode images

Optimized images load faster and consume less cellular data.
Score: 1
Potential savings of 13 KiB
URL Total Size Potential Savings
1 https://www.gstatic.com/youtube/img/promos/growth/dc5b9cb12d... 21.50 KB 13.49 KB
13.49 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.

Reduce JavaScript execution time

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
Score: 0.61
URL Script Evaluation Script Parse Total CPU Time
1 https://www.youtube.com/s/desktop/a466a8fe/jsbin/web-animati... 1.51 MS 1048.441 MS 1455.707 MS
2 https://www.youtube.com/s/desktop/a466a8fe/jsbin/desktop_pol... 163.541 MS 849.095 MS 1272.573 MS
3 https://www.youtube.com/ 26.019 MS 308.883 MS 653.172 MS
4 https://www.youtube.com/s/desktop/a466a8fe/jsbin/webcomponen... 2.216 MS 203.925 MS 248.465 MS
5 https://www.youtube.com/s/player/11aba956/player_ias.vflset/... 35.071 MS 181.738 MS 227.288 MS
6 Unattributable 0.225 MS 10.521 MS 145.378 MS
4002.583 MS

Properly size images

Serve images that are appropriately-sized to save cellular data and improve load time.
Score: 1
Potential savings of 527 KiB
URL Total Size Potential Savings Potential Savings %
1 https://i.ytimg.com/vi/k8MlLjhtrdQ/hq720.jpg?sqp=-oaymwEcCNA... 90.16 KB 79.03 KB 87.65 %
2 https://i.ytimg.com/vi/nM89Wl03Q4g/hq720.jpg?sqp=-oaymwEcCNA... 70.64 KB 61.92 KB 87.65 %
3 https://i.ytimg.com/vi/6-8Yf3-Zcno/hq720.jpg?sqp=-oaymwEcCNA... 68.13 KB 59.71 KB 87.65 %
4 https://i.ytimg.com/vi/mLUTB5TwM4o/hq720.jpg?sqp=-oaymwEcCNA... 58.21 KB 51.02 KB 87.65 %
5 https://i.ytimg.com/vi/ZJ7FKEdFwJw/hq720.jpg?sqp=-oaymwEcCNA... 55.48 KB 48.63 KB 87.65 %
6 https://i.ytimg.com/vi/NXvUhVn_Kns/hq720.jpg?sqp=-oaymwEcCNA... 54.74 KB 47.98 KB 87.65 %
7 https://i.ytimg.com/vi/0BVrqUjbSOc/hq720.jpg?sqp=-oaymwEcCNA... 45.69 KB 40.05 KB 87.65 %
8 https://i.ytimg.com/vi/J8Oi3hMS5Zw/hq720.jpg?sqp=-oaymwEcCNA... 44.00 KB 38.57 KB 87.65 %
9 https://i.ytimg.com/vi/tXjHb5QmDV0/hq720.jpg?sqp=-oaymwEcCNA... 28.18 KB 24.70 KB 87.65 %
10 https://i.ytimg.com/vi/B_UcvC0DQ6U/hqdefault.jpg?sqp=-oaymwE... 27.40 KB 19.75 KB 72.08 %
11 https://i.ytimg.com/vi/gXUkbvei11Q/hq720.jpg?sqp=-oaymwEcCNA... 20.33 KB 17.82 KB 87.65 %
12 https://www.gstatic.com/youtube/img/promos/growth/dc5b9cb12d... 21.50 KB 16.13 KB 75.00 %
13 https://i.ytimg.com/vi/4itx6mXEJ6c/hq720.jpg?sqp=-oaymwEcCNA... 16.69 KB 14.63 KB 87.65 %
14 https://www.gstatic.com/youtube/img/promos/growth/c117e153c0... 8.92 KB 6.69 KB 75.00 %
526.61 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:
15 chains found
URL Start Time End Time Response Received Time Transfer Size
https://www.youtube.com/ 5,302,762.33 MS 5,302,762.87 MS 5,302,762.87 MS 58.13 KB
https://www.youtube.com/s/desktop/a466a8fe/jsbin/custom-elem... 5,302,762.88 MS 5,302,762.89 MS 5,302,762.89 MS 1.34 KB
https://www.youtube.com/s/desktop/a466a8fe/cssbin/www-main-d... 5,302,762.99 MS 5,302,763.00 MS 5,302,763.00 MS 1.52 KB
https://www.youtube.com/s/desktop/a466a8fe/jsbin/www-tamperi... 5,302,762.89 MS 5,302,762.90 MS 5,302,762.90 MS 4.06 KB
https://www.youtube.com/s/desktop/a466a8fe/jsbin/network.vfl... 5,302,762.89 MS 5,302,762.90 MS 5,302,762.90 MS 5.76 KB
https://www.youtube.com/s/desktop/a466a8fe/jsbin/scheduler.v... 5,302,762.89 MS 5,302,762.89 MS 5,302,762.89 MS 3.11 KB
https://www.youtube.com/s/desktop/a466a8fe/cssbin/www-onepic... 5,302,762.89 MS 5,302,762.90 MS 5,302,762.90 MS 0.84 KB
https://www.youtube.com/s/desktop/a466a8fe/jsbin/spf.vflset/... 5,302,762.89 MS 5,302,762.90 MS 5,302,762.90 MS 13.58 KB
https://www.youtube.com/s/desktop/a466a8fe/jsbin/webcomponen... 5,302,762.89 MS 5,302,762.89 MS 5,302,762.89 MS 21.46 KB
https://www.youtube.com/s/desktop/a466a8fe/cssbin/www-main-d... 5,302,762.89 MS 5,302,762.90 MS 5,302,762.90 MS 1.29 KB
https://www.youtube.com/s/desktop/a466a8fe/jsbin/www-i18n-co... 5,302,762.89 MS 5,302,762.90 MS 5,302,762.90 MS 2.08 KB
https://www.youtube.com/s/desktop/a466a8fe/jsbin/web-animati... 5,302,762.88 MS 5,302,762.89 MS 5,302,762.89 MS 15.41 KB
https://fonts.googleapis.com/css?family=Roboto:500,300,700,4... 5,302,762.89 MS 5,302,762.91 MS 5,302,762.91 MS 1.66 KB
https://youtube.com/ 5,302,762.27 MS 5,302,762.33 MS 5,302,762.33 MS 0.78 KB
http://youtube.com/ 5,302,762.25 MS 5,302,762.27 MS 5,302,762.27 MS 0.39 KB