Page summary

https://www.mediawiki.org/wiki/MediaWiki

Tested 2025-04-05 18:17:14 using Chrome 134.0.6998.35 (runtime settings).

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

Summary

MetricValue
Page metrics
Performance Score77
Total Page Transfer Size514.2 KB
Requests40
Timing metrics
TTFB [median]506 ms
First Paint [median]724 ms
Fully Loaded [median]1.903 s
Google Web Vitals
TTFB [median]506 ms
First Contentful Paint (FCP) [median]724 ms
Largest Contentful Paint (LCP) [median]1.320 s
Cumulative Layout Shift (CLS) [median]0.04
Interaction To Next Paint (INP) [median]104 ms
CPU metrics
CPU long tasks [median]1
CPU longest task duration61 ms
CPU last long task happens at710 ms
Visual Metrics
First Visual Change [median]733 ms
Speed Index [median]877 ms
Visual Complete 85% [median]1.333 s
Visual Complete 99% [median]1.366 s
Last Visual Change [median]1.366 s
Screenshot of run 5

Timings Summary

Metricminmedianmeanmax
Visual Metrics
FirstVisualChange700 ms733 ms726 ms733 ms
LastVisualChange1.366 s1.366 s1.366 s1.366 s
SpeedIndex856 ms877 ms875 ms886 ms
LargestImage1.300 s1.333 s1.320 s1.333 s
Heading1.300 s1.333 s1.320 s1.333 s
LargestContentfulPaint1.300 s1.333 s1.320 s1.333 s
LastMeaningfulPaint1.300 s1.333 s1.320 s1.333 s
VisualReadiness633 ms633 ms640 ms666 ms
VisualComplete851.300 s1.333 s1.320 s1.333 s
VisualComplete951.300 s1.333 s1.320 s1.333 s
VisualComplete991.366 s1.366 s1.366 s1.366 s
Google Web Vitals
Time To First Byte (TTFB)491 ms506 ms503 ms507 ms
Largest Contentful Paint (LCP)1.304 s1.320 s1.318 s1.324 s
First Contentful Paint (FCP)704 ms724 ms720 ms728 ms
Cumulative Layout Shift (CLS)0.04120.04120.04120.0412
More metrics
firstPaint704 ms724 ms720 ms728 ms
loadEventEnd1.765 s1.798 s1.805 s1.893 s
User Timing
mwStartup760 ms779 ms777 ms784 ms
CPU
Total Blocking Time0 ms0 ms0 ms0 ms
Max Potential FID0 ms0 ms0 ms0 ms
CPU long tasks 1111
CPU last long task happens at694 ms710 ms707 ms714 ms
| Waterfall | | Download HAR | 

Waterfall

Run 5 SpeedIndex median

| Video | Download | 

Video

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| Filmstrip | 

Filmstrip

Use--filmstrip.showAll to show all filmstrips.

0 s
0.8 sCPU Long Task duration 60 msFirst Contentful Paint 720 msFirst Visual Change 733 msLayout Shift 0.00330 763 msDOM Content Loaded Time 771 msmwStartup 777 ms
0.9 s
1 s
1.1 s
1.2 s
1.3 sLayout Shift 0.03792 1.278 s
1.4 sLCP <IMG> 1.324 sVisual Complete 85% 1.333 sVisual Complete 95% 1.333 sLargest Image 1.333 sHeading 1.333 sLast Visual Change 1.366 sVisual Complete 99% 1.366 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 8.1.1.

I am the coach

Coach score

Performance advice (77)

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://www.mediawiki.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-202299
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://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • Don't scale images in the browser (avoidScalingImages)The page has 3 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.70
    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://www.mediawiki.org/static/images/mobile/copyright/mediawikiwiki-wordmark.svg
  • https://www.mediawiki.org/static/images/footer/wikimedia-button.svg
  • https://www.mediawiki.org/w/resources/assets/poweredby_mediawiki.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.
    Have a fast largest contentful paint (largestContentfulPaint) You can add fetchPriority="high" to the image to increase the load priority in Chrome.95
    Description: Largest contentful paint is one of Google Web Vitals and reports the render time of the largest image or text block visible within the viewport, relative to when the page first started loading. To be fast according to Google, it needs to render before 2.5 seconds and results over 4 seconds is poor performance.
    Avoid CPU Long Tasks (longTasks)The page has 1 CPU long task with the total of 58 ms. The total blocking time is 0 ms and 1 long task before first contentful paint with total time of 58 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.80
    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
  • Avoid doing redirects (assetsRedirects)The page has 2 redirects. 1 of the redirects are from the base domain, please fix them! 1 request are from other domains, it could be 3rd-party assets doing unnecessary redirects. :(80
    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://www.mediawiki.org/wiki/Special:CentralAutoLogin/start?type=script&usesul3=0
  • https://login.wikimedia.org/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn
  • Avoid extra requests by setting cache headers (cacheHeaders)The page has 12 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 72 kB the next access.0
    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/commons/thumb/3/35/Wikimedia_Hackathon_20...to%2C_360_cam.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/0/05/OOjs_UI_icon_advanced...._advanced.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr...._edit-ltr.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/c/c4/OOjs_UI_icon_chem.svg/...icon_chem.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/OOjs_UI_icon_ongoingCo...ation-rtl.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/d/da/Echo_%28Notifications%...megaphone.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/a/a8/OOjs_UI_icon_lightbulb...lb-yellow.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/f6/OOjs_UI_icon_check-con...structive.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Icon_-_MediaWiki_Users...op_%282025%29.png
  • https://www.mediawiki.org/wiki/Special:CentralAutoLogin/start?type=script&usesul3=0
  • https://login.wikimedia.org/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn
  • https://auth.wikimedia.org/loginwiki/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn
  • Long cache headers is good (cacheHeadersLong)The page has 3 requests that have a shorter cache time than 30 days (but still a cache time).97
    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://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022
  • https://www.mediawiki.org/w/load.php?lang=en&modules=site.styles&only=styles&skin=vector-2022
  • Total JavaScript size shouldn't be too big (javascriptSize)The total JavaScript transfer size is 363.9 kB and the uncompressed size is 1.6 MB. This is totally crazy! There is really room for improvement here. 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://www.mediawiki.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022 19.3 KB58.7 KB
    https://www.mediawiki.org/w/load.php...ki.org/w/load.php 17.1 KB58.3 KB
    https://www.mediawiki.org/w/load.php...ki.org/w/load.php 288.3 KB1.2 MB
    https://www.mediawiki.org/w/load.php...ki.org/w/load.php 2.7 KB14.8 KB
    https://www.mediawiki.org/w/load.php...ki.org/w/load.php 8.4 KB56.5 KB
    https://www.mediawiki.org/w/load.php...ki.org/w/load.php 18.4 KB98.4 KB
    https://auth.wikimedia.org/loginwiki/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn 1.2 KB254 B
    Make each CSS response small (optimalCssSize)https://www.mediawiki.org/w/load.php?lang=en&modules=ext.discussionTools.init.styles%7Cext.dismissableSiteNotice.styles%7Cext.uls.pt%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediamessages.styles%7Cmediawiki.ui.button%7Cmediawiki.widgets.styles%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui.styles.indicators%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles&only=styles&skin=vector-2022 size is 35.7 kB (35736) 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://www.mediawiki.org/w/load.php...ki.org/w/load.php 34.9 KB293.0 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://www.mediawiki.org/wiki/MediaWiki
  • https://www.mediawiki.org/wiki/Special:CentralAutoLogin/start?type=script&usesul3=0
  • https://login.wikimedia.org/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn
  • https://auth.wikimedia.org/loginwiki/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn
  • Best practice advice (82)

    TitleAdviceScore
    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://www.mediawiki.org/wiki/MediaWiki has a header content-security-policy-report-only that is 1416 characters long. https://www.mediawik...ki.org/w/load.php has a header sourcemap that is 952 characters long. 98
    Description: Do not send response headers that are too long.
    Offenders:
  • https://www.mediawiki.org/wiki/MediaWiki
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • Avoid too many third party requests (thirdParty)The page do 28% requests to third party domains (11 requests and 72 kB). First party is 29 requests and 454.6 kB. The regex .*mediawiki.* was used to calculate first/third party requests.50
    Description: Do not load most of your content from third party URLs.
    Avoid unnecessary headers (unnecessaryHeaders)There are 24 responses that sets both a max-age and expires header. There are 40 responses that sets a server header. 36
    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://www.mediawiki.org/wiki/MediaWiki
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022
  • https://www.mediawiki.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022
  • https://www.mediawiki.org/w/load.php?lang=en&modules=site.styles&only=styles&skin=vector-2022
  • https://www.mediawiki.org/w/load.php?lang=en&modules=site.styles&only=styles&skin=vector-2022
  • https://www.mediawiki.org/static/images/mobile/copyright/mediawikiwiki-wordmark.svg
  • https://www.mediawiki.org/static/images/mobile/copyright/mediawikiwiki-wordmark.svg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/3/35/Wikimedia_Hackathon_20...to%2C_360_cam.jpg
  • https://www.mediawiki.org/static/images/icons/mediawikiwiki.svg
  • https://www.mediawiki.org/static/images/icons/mediawikiwiki.svg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/0/05/OOjs_UI_icon_advanced...._advanced.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr...._edit-ltr.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/c/c4/OOjs_UI_icon_chem.svg/...icon_chem.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/OOjs_UI_icon_ongoingCo...ation-rtl.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/d/da/Echo_%28Notifications%...megaphone.svg.png
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/resources/src/mediawiki.skinning/images/magnify-clip-ltr.svg?8330e
  • https://www.mediawiki.org/w/skins/Vector/resources/skins.vector.styles/images/li...r-progressive.svg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/a/a8/OOjs_UI_icon_lightbulb...lb-yellow.svg.png
  • https://www.mediawiki.org/static/images/footer/wikimedia-button.svg
  • https://www.mediawiki.org/static/images/footer/wikimedia-button.svg
  • https://www.mediawiki.org/w/resources/assets/poweredby_mediawiki.svg
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/f6/OOjs_UI_icon_check-con...structive.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Icon_-_MediaWiki_Users...op_%282025%29.png
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/wiki/Special:CentralAutoLogin/start?type=script&usesul3=0
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://www.mediawiki.org/w/load.php...ki.org/w/load.php
  • https://login.wikimedia.org/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn
  • https://auth.wikimedia.org/loginwiki/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn
  • https://www.mediawiki.org/static/favicon/mediawiki.ico
  • https://www.mediawiki.org/static/favicon/mediawiki.ico
  • 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://www.mediawiki.org/wiki/MediaWiki
  • 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://www.mediawiki.org/wiki/MediaWiki
  • Page info

    Page info
    TitleMediaWiki
    GeneratorMediaWiki 1.44.0-wmf.23
    Width1904
    Height1749
    DOM elements927
    Avg DOM depth13
    Max DOM depth20
    Iframes0
    Script tags6
    Local storage949.3 KB
    Session storage0 b
    Network Information API4g
    Resource Hints
    dns-prefetch
    https://meta.wikimedia.org/
    https://www.mediawiki.org/wiki/auth.wikimedia.org
    preconnect
    https://upload.wikimedia.org/

    Technologies used to build the page.

    Data collected using Wappalyzer version 6.10.66. 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 9.2.9100  Web servers
    HSTS 100  Security
    | Browser metrics | Visual Metrics | Largest Contentful Paint | Cumulative Layout Shift | Interaction To Next Paint | Long Aninimation Frames | Visual Elements | Server timings | 

    Data from run 5

    Visual Metrics

    Browser Metrics

    Google Web Vitals
    Time to first byte (TTFB)505 ms
    First Contentful Paint (FCP)720 ms
    Largest Contentful Paint (LCP)1.324 s
    Cumulative Layout Shift (CLS)0.04
    Interaction to next paint (INP)104 ms
    Total Blocking Time (TBT)0 ms
    First Contentful Paint info
    Elements that needed recalculate style before FCP818
    Time spent in recalculate style before FCP21.922 ms
    Extra timings
    TTFB505 ms
    First Paint720 ms
    Load Event End1.893 s
    Fully loaded1.998 s
    User Timing marks
    mwStartup777 ms

    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 typeIMG
    Element/tag<img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/35/Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg/330px-Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg" decoding="async" width="320" height="320" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/35/Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg/500px-Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/35/Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg/960px-Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg 2x" data-file-width="2011" data-file-height="2011">
    Render time 1.324 s
    Element render delay87 ms
    TTFB505 ms
    Resource delay9 ms
    Resource load duration723 ms
    Elements that needed recalculate style before LCP1109
    Time spent in recalculate style before LCP30.486 ms
    Load time1.266 s
    URL https://upload.wikim...to%2C_360_cam.jpg
    Size (width*height)102400
    DOM path
    div:eq(1) > div > div:eq(2) > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > div#lang_dir > div:eq(1) > figure > a > img> div:eq(1) > div > div:eq(2) > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > div#lang_dir > div:eq(1) > figure > a > img>
    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.

    The Largest Contentful Paint API highlighted this image as a part of the LCP.

    LCP

    Detected Cumulative Layout Shift

    0.04122 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
    0.03792<div class="mw-content-container"></div>,<img alt="Maintenance update" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a8/OOjs_UI_icon_lightbulb-yellow.svg/20px-OOjs_UI_icon_lightbulb-yellow.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a8/OOjs_UI_icon_lightbulb-yellow.svg/27px-OOjs_UI_icon_lightbulb-yellow.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a8/OOjs_UI_icon_lightbulb-yellow.svg/36px-OOjs_UI_icon_lightbulb-yellow.svg.png 2x" data-file-width="20" data-file-height="20">
    body > div:eq(1) > div > div:eq(2),body > div:eq(1) > div > div:eq(2) > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > div#lang_dir > div#misc-news > div:eq(1) > div#mainpage-news > div > div > dl > dd:eq(1) > span:eq(0) > span > img
    0.00330<header class="vector-header mw-header"></header>,<div class="mw-page-container"></div>
    body > div:eq(0) > header,body > div:eq(1)
    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.

    Interaction to Next Paint

    Interaction to Next Paint (INP) is a metric that try to measure responsiveness. It's useful if you are testing user journeys. Read more about Interaction to Next Paint.

    The measured latency was 104 ms.

    Event typemouseover
    Element typeLI
    Element class name
    Event target#mainpage-devs>ul>li
    Load state when the event happenedloading

    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
    15.1 ms8.7 ms56.8 ms56.8 ms0 ms
    No availible script information.
    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    0 ms166.4 ms16.4 ms0.1 ms16.3 ms
    No availible script information.

    Server timings

    namedurationdescription
    cache0hit-front
    host0cp3067

    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 (330px-Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg)1.333 s 1100 312 322 322
    <img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/35/Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg/330px-Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg" decoding="async" width="320" height="320" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/35/Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg/500px-Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/35/Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg/960px-Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg 2x" data-file-width="2011" data-file-height="2011">
    Heading1.333 s 206 191 1220 33
    <h1 id="firstHeading" class="firstHeading mw-first-heading"></h1>
    LargestContentfulPaint (330px-Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg)1.333 s 1100 312 322 322
    <img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/35/Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg/330px-Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg" decoding="async" width="320" height="320" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/35/Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg/500px-Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/35/Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg/960px-Wikimedia_Hackathon_2024_-_Group_photo%2C_360_cam.jpg 2x" data-file-width="2011" data-file-height="2011">
    | 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 requests40
    Total domains4
    Total transfer size514.2 KB
    Total content size2.0 MB
    Responses missing compression12
    Number of cookies1
    Third party cookies0
    Requests per response code
    20038
    3022

    Largest assets on the page (by transfer size)

    Requests and sizes per content type

    ContentHeader SizeTransfer SizeContent SizeRequests
    html0 b18.9 KB80.8 KB1
    css0 b36.2 KB294.1 KB2
    javascript0 b355.3 KB1.5 MB7
    image0 b69.1 KB61.2 KB9
    svg0 b26.4 KB35.3 KB18
    favicon0 b8.2 KB15.0 KB1
    Total0 b514.2 KB2.0 MB38

    Data per domain

    DomainTotal download timeTransfer SizeContent SizeRequests
    www.mediawiki.org4.291 s443.9 KB1.9 MB29
    upload.wikimedia.org4.358 s69.1 KB61.2 KB9
    login.wikimedia.org211 msN/A0 b1
    auth.wikimedia.org190 ms1.2 KB254 B1

    Expires and last modified statistics

    typeminmedianmax
    Expires0 seconds4 weeks1 year
    Last modified23 seconds2 weeks3 years

    Requests loaded after onLoad event

    Included requests done after load event end.

    ContentTransfer SizeRequests
    html0 b0
    css0 b0
    javascript0 b0
    image0 b0
    font0 b0
    favicon8.2 KB1
    Total8.2 KB1

    Requests loaded after onContentLoad

    Includes requests done after DOM content loaded.

    ContentTransfer SizeRequests
    html0 b0
    css0 b0
    javascript336.0 KB6
    image7.1 KB3
    font0 b0
    svg18.5 KB13
    favicon8.2 KB1
    Total369.8 KB25

    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 0
    Max Potential First Input Delay 0
    Long Tasks before First Paint160
    Long Tasks before First Contentful Paint160
    Long Tasks before Largest Contentful Paint160
    Long Tasks after Load Event End00
    Total Long Tasks160

    CPU last long task happened at 706 ms

    Individual Long Tasks

    namestartTimedurationcontainerIdcontainerNamecontainerSrccontainerType
    unknown70660window

    CPU time spent

    Calculated using Tracium.

    Categories (ms)
    parseHTML18
    styleLayout95
    paintCompositeRender9
    scriptParseCompile3
    scriptEvaluation143
    garbageCollection5
    other126
    Events (ms)
    FunctionCall118
    RunTask90
    Layout55
    UpdateLayoutTree40
    v8.run13
    CpuProfiler::StartProfiling12
    ParseHTML11

    Time spent per request

    URLCPU time (ms)
    https://www.mediawiki.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022131
    https://www.mediawiki.org/w/load.php?lang=en&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2CstartUp%7Cext.centralauth.centralautologin%7Cext.checkUser.clientHints%7Cext.discussionTools.init%2Cminervaicons%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2CwikimediaEvents%7Cext.echo.centralauth%7Cext.uls.interface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cjquery%2Cmoment%2Coojs%2Coojs-ui-core%2Coojs-ui-windows%2Crangefix%2Csite%7Cjquery.client%2CtextSelection%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Ccodex%7Coojs-ui-windows.icons%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.vector-2022&skin=vector-2022&version=1o5r136