Page summary

https://en.wikipedia.org/wiki/Facebook

Tested 2026-03-04 12:58:27 using Chrome 144.0.7559.59 (runtime settings).

SummaryWaterfall MetricsVideoFilmstrip CoachPageXrayCPU
| Summary | | Download Video | Download Timeline Log | Download HAR | Download Console Logs | 

Summary

MetricValue
Page metrics
Performance Score73
Total Page Transfer Size1.0 MB
Requests34
Timing metrics
TTFB [median]426 ms
First Paint [median]1.044 s
Fully Loaded [median]4.286 s
Google Web Vitals
TTFB [median]426 ms
First Contentful Paint (FCP) [median]1.044 s
Largest Contentful Paint (LCP) [median]1.436 s
Cumulative Layout Shift (CLS) [median]0.48
Total Blocking Time [median]1.467 s
Max Potential FID [median]443 ms
CPU metrics
CPU long tasks [median]14
CPU longest task duration461 ms
CPU last long task happens at4.037 s
Visual Metrics
First Visual Change [median]1.034 s
Speed Index [median]3.098 s
Visual Complete 85% [median]4.300 s
Visual Complete 99% [median]12.900 s
Last Visual Change [median]14.500 s
Screenshot of run 3

Timings Summary

Metricminmedianmeanmax
Visual Metrics
FirstVisualChange1.033 s1.034 s1.045 s1.067 s
LastVisualChange14.500 s14.500 s14.522 s14.567 s
SpeedIndex3.054 s3.098 s3.105 s3.164 s
LargestImage4.166 s4.200 s4.200 s4.234 s
LastMeaningfulPaint4.166 s4.200 s4.200 s4.234 s
VisualReadiness13.466 s13.467 s13.478 s13.500 s
VisualComplete854.266 s4.300 s4.300 s4.334 s
VisualComplete9512.100 s12.134 s12.134 s12.167 s
VisualComplete9912.900 s12.900 s13.122 s13.567 s
Google Web Vitals
Time To First Byte (TTFB)413 ms426 ms423 ms431 ms
Largest Contentful Paint (LCP)1.404 s1.436 s1.425 s1.436 s
First Contentful Paint (FCP)1.028 s1.044 s1.041 s1.052 s
Cumulative Layout Shift (CLS)0.47840.47840.47840.4784
More metrics
firstPaint1.028 s1.044 s1.041 s1.052 s
loadEventEnd1.882 s1.920 s1.912 s1.935 s
User Timing
mwStartup1.209 s1.224 s1.220 s1.226 s
mwCentralNoticeBanner3.695 s3.712 s3.715 s3.737 s
CPU
Total Blocking Time1.446 s1.467 s1.461 s1.471 s
Max Potential FID442 ms443 ms449 ms461 ms
CPU long tasks 13141414
CPU last long task happens at4.016 s4.037 s4.033 s4.045 s
| Waterfall | | Download HAR | 

Waterfall

Run 3 SpeedIndex median

| Video | Download | 

Video

Download video
| Filmstrip | 

Filmstrip

Use--filmstrip.showAll to show all filmstrips.

0 s
0.9 sCPU Long Task duration 132 ms
1.1 sFirst Contentful Paint 1.028 sFirst Visual Change 1.034 s
1.2 s
1.3 smwStartup 1.209 sCPU Long Task duration 121 ms
1.4 s
1.5 sLCP <P> 1.404 s
1.6 sCPU Long Task duration 155 ms
1.7 s
1.8 sCPU Long Task duration 84 ms
1.9 sDOM Content Loaded Time 1.807 sPage Load Time 1.882 s
2 sCPU Long Task duration 243 ms
2.1 s
2.2 sCPU Long Task duration 62 ms
2.3 sCPU Long Task duration 56 ms
2.4 sCPU Long Task duration 65 ms
2.5 sCPU Long Task duration 443 ms
2.6 s
2.7 s
2.8 s
2.9 s
3 sCPU Long Task duration 400 ms
3.1 s
3.2 s
3.4 sCPU Long Task duration 251 ms
3.7 s
3.8 smwCentralNoticeBanner 3.712 sCPU Long Task duration 62 msLayout Shift 0.47844 3.744 s
3.9 sCPU Long Task duration 54 ms
4 s
4.1 sCPU Long Task duration 125 ms
4.2 sLargest Image 4.200 s
4.3 sFully Loaded 4.286 sVisual Complete 85% 4.300 s
4.4 s
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5 s
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10 s
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11 s
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11.3 s
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11.7 s
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11.9 s
12 s
12.1 s
12.2 sVisual Complete 95% 12.134 s
12.3 s
12.4 s
12.6 s
12.7 s
12.8 s
12.9 sVisual Complete 99% 12.900 s
13 s
13.1 s
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13.6 s
13.7 s
13.8 s
13.9 s
14 s
14.1 s
14.2 s
14.3 s
14.4 s
14.5 sLast Visual Change 14.500 s
| Performance advice | Best practice advice | Privacy advice | Page info | Technologies | 

Coach

The coach helps you find performance problems on your web page using web performance best practice rules. And gives you advice on privacy and best practices. Tested using Coach-core version 8.1.3.

I am the coach

Coach score

Performance advice (73)

TitleAdviceScore
Avoid slowing down the critical rendering path (avoidRenderBlocking)The page has 2 blocking requests and 0 in body parser blocking (0 JavaScript and 2 CSS). There are 1 potentially render blocking requests. You need to verify if it is render blocking: https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva99
Description: The critical rendering path is what the browser needs to do to start rendering the page. Every file requested inside of the head element will postpone the rendering of the page, because the browser need to do the request. Avoid loading JavaScript synchronously inside of the head (you should not need JavaScript to render the page), request files from the same domain as the main document (to avoid DNS lookups) and inline CSS for really fast rendering and a short rendering path.
Offenders:
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • Don't scale images in the browser (avoidScalingImages)The page has 4 images that are scaled more than 100 pixels. It would be better if those images are sent so the browser don't need to scale them.60
    Description: It's easy to scale images in the browser and make sure they look good in different devices, however that is bad for performance! Scaling images in the browser takes extra CPU time and will hurt performance on mobile. And the user will download extra kilobytes (sometimes megabytes) of data that could be avoided. Don't do that, make sure you create multiple version of the same image server-side and serve the appropriate one.
    Offenders:
  • https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en-25.svg
  • https://upload.wikimedia.org/wikipedia/commons/c/c1/Wiki_Loves_Ramadan_Logo_Black_banner.svg
  • https://upload.wikimedia.org/wikipedia/commons/1/1f/%D8%B5%D9%88%D9%85%D8%B9%D8%...8%D8%A7%D8%B7.jpg
  • https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en-25.svg
  • Inline CSS for faster first render (inlineCss)The page has both inline CSS and CSS requests even though it uses a HTTP/2-ish connection. If you have many users on slow connections, it can be better to only inline the CSS. Run your own tests and check the waterfall graph to see what happens.95
    Description: In the early days of the Internet, inlining CSS was one of the ugliest things you can do. That has changed if you want your page to start rendering fast for your user. Always inline the critical CSS when you use HTTP/1 and HTTP/2 (avoid doing CSS requests that block rendering) and lazy load and cache the rest of the CSS. It is a little more complicated when using HTTP/2. Does your server support HTTP push? Then maybe that can help. Do you have a lot of users on a slow connection and are serving large chunks of HTML? Then it could be better to use the inline technique, becasue some servers always prioritize HTML content over CSS so the user needs to download the HTML first, before the CSS is downloaded.
    Avoid CPU Long Tasks (longTasks)The page has 13 CPU long tasks with the total of 2.195 s. The total blocking time is 1.467 s and 1 long task before first contentful paint with total time of 128 ms. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. Use Geckoprofiler for Firefox or Chromes tracelog to debug your long tasks.0
    Description: Long CPU tasks locks the thread. To the user this is commonly visible as a "locked up" page where the browser is unable to respond to user input; this is a major source of bad user experience on the web today. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. To debug you should use the Chrome timeline log and drag/drop it into devtools or use Firefox Geckoprofiler.
    Offenders:
  • unknown
  • unknown
  • self
  • unknown
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • Avoid doing redirects (assetsRedirects)The page has 1 redirect. 1 of the redirects are from the base domain, please fix them! 90
    Description: A redirect is one extra step for the user to download the asset. Avoid that if you want to be fast. Redirects are even more of a showstopper on mobile.
    Offenders:
  • https://en.wikipedia.org/wiki/Special:CentralAutoLogin/start?useformat=mobile&type=script&usesul3=1
  • Avoid extra requests by setting cache headers (cacheHeaders)The page has 9 requests that are missing a cache time. Configure a cache time so the browser doesn't need to download them every time. It will save 392.9 kB the next access.10
    Description: The easiest way to make your page fast is to avoid doing requests to the server. Setting a cache header on your server response will tell the browser that it doesn't need to download the asset again during the configured cache time! Always try to set a cache time if the content doesn't change for every request.
    Offenders:
  • https://upload.wikimedia.org/wikipedia/en/6/64/Facebook_user_page.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/b/b9/2023_Facebook_icon.svg...book_icon.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/9/93/Facebook_logo_%282023%...282023%29.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Increase2.svg/40px-Increase2.svg.png
  • https://en.wikipedia.org/wiki/Special:CentralAutoLogin/start?useformat=mobile&type=script&usesul3=1
  • https://meta.wikimedia.org/w/index.php...a.org/w/index.php
  • https://auth.wikimedia.org/metawiki/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn
  • https://upload.wikimedia.org/wikipedia/commons/c/c1/Wiki_Loves_Ramadan_Logo_Black_banner.svg
  • https://upload.wikimedia.org/wikipedia/commons/1/1f/%D8%B5%D9%88%D9%85%D8%B9%D8%...8%D8%A7%D8%B7.jpg
  • Long cache headers is good (cacheHeadersLong)The page has 4 requests that have a shorter cache time than 30 days (but still a cache time).96
    Description: Setting a cache header is good. Setting a long cache header (at least 30 days) is even better beacause then it will stay long in the browser cache. But what do you do if that asset change? Rename it and the browser will pick up the new version.
    Offenders:
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva
  • https://en.wikipedia.org/w/load.php?lang=en&modules=site.styles&only=styles&skin=minerva
  • https://en.wikipedia.org/w/api.php?action=webapp-manifest
  • Total JavaScript size shouldn't be too big (javascriptSize)The total JavaScript transfer size is 250.4 kB and the uncompressed size is 956.3 kB. This is quite large. 0
    Description: A lot of JavaScript often means you are downloading more than you need. How complex is the page and what can the user do on the page? Do you use multiple JavaScript frameworks?
    Offenders:
    URLTransfer sizeContent size
    https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva 21.5 KB64.7 KB
    https://en.wikipedia.org/w/load.php?lang=en&modules=ext.gadget.switcher&skin=minerva&version=mygzm 1.6 KB1.3 KB
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 8.9 KB25.1 KB
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 204.6 KB824.6 KB
    https://meta.wikimedia.org/w/index.php...a.org/w/index.php 2.7 KB4.7 KB
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 3.8 KB13.2 KB
    https://auth.wikimedia.org/metawiki/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn 1.4 KB254 B
    Make each CSS response small (optimalCssSize)https://en.wikipedia.org/w/load.php?lang=en&modules=ext.chart.styles%7Cext.cite.styles%7Cext.relatedArticles.styles%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cext.wp25EasterEggs.styles%7Cmediawiki.hlist%7Cmediawiki.page.gallery.styles%7Cmobile.init.styles%7Cskins.minerva.amc.styles%7Cskins.minerva.codex.styles%7Cskins.minerva.content.styles.images%7Cskins.minerva.icons%2Cstyles%7Cwikibase.client.init&only=styles&skin=minerva size is 22.1 kB (22073) and that is bigger than the limit of 14.5 kB. Try to make the CSS files fit into 14.5 KB.90
    Description: Make CSS responses small to fit into the magic number TCP window size of 14.5 KB. The browser can then download the CSS faster and that will make the page start rendering earlier.
    Offenders:
    URLTransfer sizeContent size
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 21.6 KB159.2 KB
    Total page size shouldn't be too big (pageSize)The page total transfer size is 1.1 MB, which is more than the coach limit of 1 MB. That is really big and you need to make it smaller.0
    Description: Avoid having pages that have a transfer size over the wire of more than 2 MB (desktop) and 1 MB (mobile) because that is really big and will hurt performance and will make the page expensive for the user if she/he pays for the bandwidth.
    Offenders:
    URLTransfer sizeContent size
    https://en.wikipedia.org/wiki/Facebook 184.5 KB1010.4 KB
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 21.6 KB159.2 KB
    https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva 21.5 KB64.7 KB
    https://en.wikipedia.org/w/load.php?lang=en&modules=site.styles&only=styles&skin=minerva 1.7 KB2.2 KB
    https://upload.wikimedia.org/wikipedia/en/6/64/Facebook_user_page.png 82.3 KB81.1 KB
    https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en-25.svg 4.9 KB9.6 KB
    https://upload.wikimedia.org/wikipedia/commons/thumb/b/b9/2023_Facebook_icon.svg...book_icon.svg.png 4.3 KB3.2 KB
    https://upload.wikimedia.org/wikipedia/commons/thumb/9/93/Facebook_logo_%282023%...282023%29.svg.png 5.4 KB4.3 KB
    https://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Increase2.svg/40px-Increase2.svg.png 1.3 KB180 B
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 1.1 KB224 B
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 1.1 KB257 B
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 1.1 KB417 B
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 1.1 KB334 B
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 1.1 KB285 B
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 1.2 KB585 B
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 1.1 KB267 B
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 1.3 KB707 B
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 1.1 KB326 B
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 1.2 KB414 B
    https://en.wikipedia.org/w/load.php?lang=en&modules=ext.gadget.switcher&skin=minerva&version=mygzm 1.6 KB1.3 KB
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 8.9 KB25.1 KB
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 204.6 KB824.6 KB
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 1.1 KB318 B
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 1.1 KB318 B
    https://en.wikipedia.org/wiki/Special:CentralAutoLogin/start?useformat=mobile&type=script&usesul3=1 N/A0 b
    https://meta.wikimedia.org/w/index.php...a.org/w/index.php 2.7 KB4.7 KB
    https://en.wikipedia.org/w/api.php?action=webapp-manifest 1.8 KB263 B
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 3.8 KB13.2 KB
    https://auth.wikimedia.org/metawiki/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn 1.4 KB254 B
    https://en.wikipedia.org/static/favicon/wikipedia.ico 1.8 KB2.7 KB
    https://en.wikipedia.org/static/apple-touch/wikipedia.png 2.0 KB1.3 KB
    https://upload.wikimedia.org/wikipedia/commons/c/c1/Wiki_Loves_Ramadan_Logo_Black_banner.svg 6.1 KB18.5 KB
    https://upload.wikimedia.org/wikipedia/commons/1/1f/%D8%B5%D9%88%D9%85%D8%B9%D8%...8%D8%A7%D8%B7.jpg 280.2 KB278.9 KB
    https://en.wikipedia.org/w/extensions/WP25EasterEggs/resources/media/video/phone-idle-light.webm 207.8 KB206.9 KB
    Don't use private headers on static content (privateAssets)The page has 4 requests with private headers. The main page has a private header. It could be right in some cases where the user can be logged in and served specific content. But if your asset is static it should never be private. Make sure that the assets really should be private and only used by one user. Otherwise, make it cacheable for everyone.70
    Description: If you set private headers on content, that means that the content are specific for that user. Static content should be able to be cached and used by everyone. Avoid setting the cache header to private.
    Offenders:
  • https://en.wikipedia.org/wiki/Facebook
  • https://en.wikipedia.org/wiki/Special:CentralAutoLogin/start?useformat=mobile&type=script&usesul3=1
  • https://meta.wikimedia.org/w/index.php...a.org/w/index.php
  • https://auth.wikimedia.org/metawiki/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn
  • Best practice advice (73)

    TitleAdviceScore
    Cumulative Layout Shift (cumulativeLayoutShift)You have a poor cumulative layout shift score (0.4784). It is in the Google Web Vitals poor range, with a shift higher than 0.25. You should manually check the filmstrip or video and check if it will affect the user.0
    Description: Cumulative Layout Shift measures the sum total of all individual layout shift scores for unexpected layout shift that occur. The metric is measuring visual stability by quantify how often users experience unexpected layout shifts. It is one of Google Web Vitals.
    Meta description (metaDescription)The page is missing a meta description.0
    Description: Use a page description to make the page more relevant to search engines.
    Do not send too long headers (longHeaders)https://en.wikipedia.org/wiki/Facebook has a header content-security-policy-report-only that is 1397 characters long. https://en.wikipedia...ia.org/w/load.php has a header sourcemap that is 1401 characters long. 98
    Description: Do not send response headers that are too long.
    Offenders:
  • https://en.wikipedia.org/wiki/Facebook
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • Avoid unnecessary headers (unnecessaryHeaders)There are 23 responses that sets both a max-age and expires header. There are 34 responses that sets a server header. 43
    Description: Do not send headers that you don't need. We look for p3p, cache-control and max-age, pragma, server and x-frame-options headers. Have a look at Andrew Betts - Headers for Hackers talk as a guide https://www.youtube.com/watch?v=k92ZbrY815c or read https://www.fastly.com/blog/headers-we-dont-want.
    Offenders:
  • https://en.wikipedia.org/wiki/Facebook
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva
  • https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva
  • https://en.wikipedia.org/w/load.php?lang=en&modules=site.styles&only=styles&skin=minerva
  • https://en.wikipedia.org/w/load.php?lang=en&modules=site.styles&only=styles&skin=minerva
  • https://upload.wikimedia.org/wikipedia/en/6/64/Facebook_user_page.png
  • https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en-25.svg
  • https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en-25.svg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/b/b9/2023_Facebook_icon.svg...book_icon.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/9/93/Facebook_logo_%282023%...282023%29.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Increase2.svg/40px-Increase2.svg.png
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php?lang=en&modules=ext.gadget.switcher&skin=minerva&version=mygzm
  • https://en.wikipedia.org/w/load.php?lang=en&modules=ext.gadget.switcher&skin=minerva&version=mygzm
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/wiki/Special:CentralAutoLogin/start?useformat=mobile&type=script&usesul3=1
  • https://meta.wikimedia.org/w/index.php...a.org/w/index.php
  • https://en.wikipedia.org/w/api.php?action=webapp-manifest
  • https://en.wikipedia.org/w/api.php?action=webapp-manifest
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://auth.wikimedia.org/metawiki/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn
  • https://en.wikipedia.org/static/favicon/wikipedia.ico
  • https://en.wikipedia.org/static/favicon/wikipedia.ico
  • https://en.wikipedia.org/static/apple-touch/wikipedia.png
  • https://en.wikipedia.org/static/apple-touch/wikipedia.png
  • https://upload.wikimedia.org/wikipedia/commons/c/c1/Wiki_Loves_Ramadan_Logo_Black_banner.svg
  • https://upload.wikimedia.org/wikipedia/commons/1/1f/%D8%B5%D9%88%D9%85%D8%B9%D8%...8%D8%A7%D8%B7.jpg
  • https://en.wikipedia.org/w/extensions/WP25EasterEggs/resources/media/video/phone-idle-light.webm
  • Privacy advice (88)

    TitleAdviceScore
    Use a good Content-Security-Policy header to make sure you you avoid Cross Site Scripting (XSS) attacks. (contentSecurityPolicyHeader)Set a Content-Security-Policy header to make sure you are not open for Cross Site Scripting (XSS) attacks. You can start with setting a Content-Security-Policy-Report-Only header, that will only report the violation, not stop the download.0
    Description: Content Security Policy is delivered via a HTTP response header, and defines approved sources of content that the browser may load. It can be an effective countermeasure to Cross Site Scripting (XSS) attacks and is also widely supported and usually easily deployed. https://scotthelme.co.uk/content-security-policy-an-introduction/.
    Offenders:
  • https://en.wikipedia.org/wiki/Facebook
  • Set a referrer-policy header to make sure you do not leak user information. (referrerPolicyHeader)Set a referrer-policy header to make sure you do not leak user information.0
    Description: Referrer Policy is a new header that allows a site to control how much information the browser includes with navigations away from a document and should be set by all sites. https://scotthelme.co.uk/a-new-security-header-referrer-policy/.
    Offenders:
  • https://en.wikipedia.org/wiki/Facebook
  • Page info

    Page info
    TitleFacebook - Wikipedia
    GeneratorMediaWiki 1.46.0-wmf.17
    Width360
    Height4922
    DOM elements11539
    Avg DOM depth13
    Max DOM depth20
    Iframes0
    Script tags7
    Local storage769.7 KB
    Session storage0 b
    Network Information API4g
    Resource Hints
    dns-prefetch
    https://meta.wikimedia.org/
    https://en.wikipedia.org/wiki/auth.wikimedia.org
    preconnect
    https://upload.wikimedia.org/

    Technologies used to build the page.

    Data collected using Wappalyzer version 6.10.54. With updated code from Webappanalyzer 2024-12-27. Use --browsertime.firefox.includeResponseBodies htmlor --browsertime.chrome.includeResponseBodies htmlto help Wappalyzer find more information about technologies used.

    TechnologyConfidenceCategory
    MediaWiki 100  Wikis
    PHP 100  Programming languages
    Apache Traffic Server 9.2.11100  Web servers
    HSTS 100  Security
    | Browser metrics | Visual Metrics | Largest Contentful Paint | Cumulative Layout Shift | Long Aninimation Frames | Visual Elements | Server timings | 

    Data from run 3

    Visual Metrics

    Browser Metrics

    Google Web Vitals
    Time to first byte (TTFB)413 ms
    First Contentful Paint (FCP)1.028 s
    Largest Contentful Paint (LCP)1.404 s
    Cumulative Layout Shift (CLS)0.48
    Total Blocking Time (TBT)1.471 s
    First Contentful Paint info
    Elements that needed recalculate style before FCP111
    Time spent in recalculate style before FCP51.23 ms
    Extra timings
    TTFB413 ms
    First Paint1.028 s
    Load Event End1.882 s
    Fully loaded4.286 s
    User Timing marks
    mwStartup1.209 s
    mwCentralNoticeBanner3.712 s

    Largest Contentful Paint

    When in time the page main content is rendered (collected using the Largest Contentful Paint API). Read more about Largest Contentful Paint.

    Element typeP
    Element/tag<p></p>
    Render time 1.404 s
    Element render delay991 ms
    TTFB413 ms
    Resource delay0 ms
    Resource load duration0 ms
    Elements that needed recalculate style before LCP391
    Time spent in recalculate style before LCP90.545 ms
    Load time0 ms
    Size (width*height)33390
    DOM path
    div#mw-mf-viewport > div#mw-mf-page-center > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > section#mf-section-0 > p:eq(1)> div#mw-mf-viewport > div#mw-mf-page-center > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > section#mf-section-0 > p:eq(1)>
    LCP

    The largest contentful paint is highlighted in the image. If no element is highlighted the element was removed before the screenshot or the LCP API couldn't find the element.

    Detected Cumulative Layout Shift

    0.47844 cumulative layout shift collected from the Cumulative Layout Shift API.

    These HTML elements contribute most to the Cumulative Layout Shifts of the page. The higher score, the more layout shift.

    ScoreHTML Element
    0.47844<div class="wp25eastereggs-sitenotice"></div>,<div class="pre-content heading-holder"></div>,<ul id="p-views" class="page-actions-menu__list minerva-icon-only-menu"></ul>,<div id="bodyContent" class="content"></div>
    body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div:eq(0) > div#siteNotice > div:eq(1),body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div:eq(1),body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div:eq(1) > nav > ul#p-views,body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div#bodyContent
    Layout shift

    The elements that have shifted place is highlighted in the image (that have a higher value than 0.01). If the element shifted outside of the viewport, you will not see it there. It can be hard to understand what content that has shifted, if that's the case, checkout the video or the filmstrip of the run.

    Long Animation Frames

    Read more about the Long Animation Frames API here here.

    The top 10 longest animation frames entries

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    394.8 ms445.6 ms1.6 ms1.5 ms0.1 ms
    https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.chart.bootstrap%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cmediawiki.DateFormatter%2CForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=vxaa7

    Invoker:  TimerHandler:setTimeout
    Invoker Type: user-callback
    Window attribution: self
    Source char position: 340802

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    353.6 ms55.3 ms387.1 ms380.7 ms6.4 ms
    https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.chart.bootstrap%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cmediawiki.DateFormatter%2CForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=vxaa7

    Invoker:  TimerHandler:setTimeout
    Invoker Type: user-callback
    Window attribution: self
    Source char position: 340802

    https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva

    Invoker:  IdleRequestCallback
    Invoker Type: user-callback
    Source Function Name:  doPropagation
    Window attribution: self
    Source char position: 4314

    https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.chart.bootstrap%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cmediawiki.DateFormatter%2CForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=vxaa7

    Forced Style And Layout Duration: 1 ms

    Invoker:  TimerHandler:setTimeout
    Invoker Type: user-callback
    Window attribution: self
    Source char position: 340802

    https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva

    Forced Style And Layout Duration: 40 ms

    Invoker:  FrameRequestCallback
    Invoker Type: user-callback
    Source Function Name:  flushCssBuffer
    Window attribution: self
    Source char position: 3240

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    253.8 ms245.5 ms59.8 ms49.8 ms10 ms
    https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva

    Invoker:  IdleRequestCallback
    Invoker Type: user-callback
    Source Function Name:  doPropagation
    Window attribution: self
    Source char position: 4314

    https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva

    Invoker:  FrameRequestCallback
    Invoker Type: user-callback
    Source Function Name:  flushCssBuffer
    Window attribution: self
    Source char position: 3240

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    205.1 ms272.3 ms3.6 ms2 ms1.6 ms
    https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.chart.bootstrap%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cmediawiki.DateFormatter%2CForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=vxaa7

    Invoker:  TimerHandler:setTimeout
    Invoker Type: user-callback
    Window attribution: self
    Source char position: 340802

    https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.chart.bootstrap%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cmediawiki.DateFormatter%2CForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=vxaa7

    Forced Style And Layout Duration: 32 ms

    Invoker:  TimerHandler:setTimeout
    Invoker Type: user-callback
    Window attribution: self
    Source char position: 340802

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    152.5 ms169 ms47.1 ms0 ms47.1 ms
    No availible script information.
    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    101 ms515.3 ms2.2 ms2.1 ms0.1 ms
    https://en.wikipedia.org/wiki/Facebook

    Invoker:  https://en.wikipedia.org/wiki/Facebook
    Invoker Type: classic-script
    Window attribution: self

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    74.9 ms124.9 ms0 ms0 ms0 ms
    https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva

    Invoker:  IdleRequestCallback
    Invoker Type: user-callback
    Source Function Name:  flushWrites
    Window attribution: self
    Source char position: 19340

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    71.4 ms25.4 ms110.1 ms0 ms110.1 ms
    No availible script information.
    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    60.4 ms100.3 ms54.4 ms40.3 ms14.1 ms
    https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva

    Invoker:  IdleRequestCallback
    Invoker Type: user-callback
    Source Function Name:  doPropagation
    Window attribution: self
    Source char position: 4314

    https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.chart.bootstrap%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cmediawiki.DateFormatter%2CForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=vxaa7

    Invoker:  TimerHandler:setTimeout
    Invoker Type: user-callback
    Window attribution: self
    Source char position: 340802

    https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.chart.bootstrap%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cmediawiki.DateFormatter%2CForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=vxaa7

    Invoker:  TimerHandler:setTimeout
    Invoker Type: user-callback
    Window attribution: self
    Source char position: 340802

    https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva

    Invoker:  FrameRequestCallback
    Invoker Type: user-callback
    Source Function Name:  flushCssBuffer
    Window attribution: self
    Source char position: 3240

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    11.6 ms80.6 ms6.9 ms6.9 ms0 ms
    https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.chart.bootstrap%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cmediawiki.DateFormatter%2CForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=vxaa7

    Invoker:  TimerHandler:setTimeout
    Invoker Type: user-callback
    Window attribution: self
    Source char position: 340802

    Server timings

    namedurationdescription
    cache0hit-front
    host0cp3070

    Custom metrics collected through JavaScript

    There are no custom configured scripts.

    Extra metrics collected using scripting

    There are no custom extra metrics from scripting.

    Visual Elements

    NameDisplay TimeX YWidthHeight
    LargestImage (%D8%B5%D9%88%D9%85%D8%B9%D8%A9_%D8%AD%D8%B3%D8%A7%D9%86_%D8%A8%D8%A7%D9%84%D8%B1%D8%A8%D8%A7%D8%B7.jpg)4.200 s 54 306 102 50
    <img src="//upload.wikimedia.org/wikipedia/commons/1/1f/%D8%B5%D9%88%D9%85%D8%B9%D8%A9_%D8%AD%D8%B3%D8%A7%D9%86_%D8%A8%D8%A7%D9%84%D8%B1%D8%A8%D8%A7%D8%B7.jpg" alt="Hassan Tower" width="94px" height="48px">
    Heading 16 635 328 37
    <h1 id="firstHeading" class="firstHeading mw-first-heading"></h1>
    | Summary  | Largest responses  | Requests and sizes per content type  | Data per domain | Expires and last modified statistics  | Requests loaded after onLoad event  | Render blocking requests  | 

    PageXray

    How the page is built.

    Summary
    HTTP versionHTTP/2.0
    Total requests34
    Total domains4
    Total transfer size1.0 MB
    Total content size2.7 MB
    Responses missing compression10
    Number of cookies13
    Third party cookies0
    Requests per response code
    20033
    3021

    Largest assets on the page (by transfer size)

    Requests and sizes per content type

    ContentHeader SizeTransfer SizeContent SizeRequests
    html0 b184.5 KB1010.4 KB1
    css0 b23.3 KB161.4 KB2
    javascript0 b244.5 KB933.9 KB7
    image0 b375.5 KB369.0 KB6
    svg0 b24.6 KB32.5 KB14
    json0 b1.8 KB263 B1
    favicon0 b1.8 KB2.7 KB1
    video0 b207.8 KB206.9 KB1
    Total0 b1.0 MB2.7 MB33

    Data per domain

    DomainTotal download timeTransfer SizeContent SizeRequests
    en.wikipedia.org5.106 s679.9 KB2.3 MB26
    upload.wikimedia.org2.786 s379.6 KB386.3 KB6
    meta.wikimedia.org101 ms2.7 KB4.7 KB1
    auth.wikimedia.org281 ms1.4 KB254 B1

    Expires and last modified statistics

    typeminmedianmax
    Expires0 seconds4 weeks1 year
    Last modified51 minutes18 weeks8 years

    Requests loaded after onLoad event

    Included requests done after load event end.

    ContentTransfer SizeRequests
    html0 b0
    css0 b0
    javascript8.0 KB3
    image282.2 KB2
    font0 b0
    json1.8 KB1
    favicon1.8 KB1
    svg6.1 KB1
    video207.8 KB1
    Total507.7 KB10

    Requests loaded after onContentLoad

    Includes requests done after DOM content loaded.

    ContentTransfer SizeRequests
    html0 b0
    css0 b0
    javascript8.0 KB3
    image282.2 KB2
    font0 b0
    json1.8 KB1
    favicon1.8 KB1
    svg6.1 KB1
    video207.8 KB1
    Total507.7 KB10

    Render blocking requests

    Render blocking information directly from Chrome.

    BlockingIn body parser blockingPotentially blocking
    201

    Render information

    CPU Long Tasks | CPU Time Spent | CPU Time Spent Per Request | 

    CPU

    Download the Chrome trace log and drag and drop it into Developer Tools / Performance in Chrome.

    Long Tasks

    Collected using the Long Task API. A long task is a task that take 50 milliseconds or more.

    TypeQuantityTotal duration (ms)
    Total Blocking Time 1471
    Max Potential First Input Delay 443
    Long Tasks before First Paint1132
    Long Tasks before First Contentful Paint1132
    Long Tasks before Largest Contentful Paint2253
    Long Tasks after Load Event End101761
    Total Long Tasks142253

    CPU last long task happened at 4.016 s

    Individual Long Tasks

    namestartTimedurationcontainerIdcontainerNamecontainerSrccontainerType
    unknown890132window
    unknown1276121window
    self1540155window
    unknown170884window
    self1912243window
    self215862window
    self225656window
    self235665window
    self2427443window
    self2936400window
    self3356251window
    self371862window
    self380554window
    self4016125window

    CPU time spent

    Calculated using Tracium.

    Categories (ms)
    parseHTML312
    styleLayout507
    paintCompositeRender106
    scriptParseCompile14
    scriptEvaluation1876
    garbageCollection23
    other1110
    Events (ms)
    FunctionCall1626
    RunTask727
    UpdateLayoutTree306
    ParseHTML292
    Layout188
    DecodedDataDocumentParser::AppendBytes83
    v8.run82
    CpuProfiler::StartProfiling79
    DocumentLoader::BodyLoadingFinished78
    V8.HandleInterrupts77
    Paint67
    PaintImage28
    EventDispatch27
    PrePaint26
    RunMicrotasks24
    Layerize23
    DocumentLoader::CommitNavigation23
    ParseAuthorStyleSheet17
    HTMLDocumentParser::MaybeFetchQueuedPreloads16
    v8.compile14
    Commit12
    V8.BytecodeBudgetInterrupt11

    Time spent per request

    URLCPU time (ms)
    https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva1835
    https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.chart.bootstrap%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cmediawiki.DateFormatter%2CForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=vxaa7977
    https://meta.wikimedia.org/w/index.php?title=Special:BannerLoader&campaign=WLR2026writing_en&banner=WLR2026writing_en&uselang=en&debug=false16
    https://en.wikipedia.org/wiki/Facebook12