Run 3 for https://en.wikipedia.org/wiki/Facebook at 2025-12-27 18:24:25

Summary

Metric	Value
Page metrics
Performance score	77
Total page size	732.7 KB
Requests	34
Timing metrics
TTFB	536 ms
First Paint	1.164 s
Fully Loaded	4.509 s
Google Web Vitals
TTFB	536 ms
First Contentful Paint (FCP)	1.164 s
Largest Contentful Paint (LCP)	1.540 s
Cumulative Layout Shift (CLS)	0.49
Total Blocking Time	1.787 s
Max Potential FID	429 ms
CPU metrics
CPU long tasks	15
CPU last long task happens at	4.584 s
Visual Metrics
First Visual Change	1.166 s
Speed Index	3.565 s
Visual Complete 85%	7.766 s
Visual Complete 99%	12.933 s
Last Visual Change	12.933 s

Download video Download timeline Download Console Logs

| Waterfall | | Download HAR |

Waterfall

Download HAR Compare

| Video | Download |

Video

Download video

| Filmstrip |

Filmstrip

Use--filmstrip.showAll to show all filmstrips.

0 s

1.1 sCPU Long Task duration 135 ms

1.2 sFirst Contentful Paint 1.164 sFirst Visual Change 1.166 s

1.3 s

1.4 smwStartup 1.327 sCPU Long Task duration 134 ms

1.5 s

1.6 sLCP <P> 1.540 s

1.7 s

1.8 sCPU Long Task duration 167 ms

1.9 sCPU Long Task duration 87 ms

2 s

2.1 sDOM Content Loaded Time 2.014 sPage Load Time 2.030 sCPU Long Task duration 263 ms

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2.4 sCPU Long Task duration 52 ms

2.5 sCPU Long Task duration 58 ms

2.6 sCPU Long Task duration 64 ms

2.7 sCPU Long Task duration 429 ms

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3.2 sCPU Long Task duration 355 ms

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3.5 sCPU Long Task duration 240 ms

3.8 s

3.9 sCPU Long Task duration 57 msmwCentralNoticeBanner 3.873 s

4 s

4.1 sCPU Long Task duration 392 ms

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4.5 sCPU Long Task duration 74 ms

4.6 sFully Loaded 4.509 sLayout Shift 0.49219 4.553 sLargest Image 4.566 sHeading 4.566 sCPU Long Task duration 115 ms

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7.8 sVisual Complete 85% 7.766 s

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12.9 sVisual Complete 95% 12.900 s

13 sLast Visual Change 12.933 sVisual Complete 99% 12.933 s

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.

Coach score

Total score 80
Performance score 77
Privacy score 88
Best practice score 73

Performance advice (77)

Title

Advice

Score

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=minerva

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 2 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.

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.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.

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 15 CPU long tasks with the total of 2.622 s. The total blocking time is 1.787 s and 1 long task before first contentful paint with total time of 135 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.

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

self

unknown

self

Avoid doing redirects (assetsRedirects)

The page has 1 redirect. 1 of the redirects are from the base domain, please fix them!

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 8 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 226.9 kB the next access.

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/b/be/Franziska_Heine.png

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).

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 326.4 kB and the uncompressed size is 1.2 MB. This is totally crazy! There is really room for improvement here.

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:

URL	Transfer size	Content size
https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva	21.0 KB	63.0 KB
https://en.wikipedia.org/w/load.php?lang=en&modules=ext.gadget.switcher&skin=minerva&version=1knie	1.5 KB	1.3 KB
https://en.wikipedia.org/w/load.php...ia.org/w/load.php	8.8 KB	24.7 KB
https://en.wikipedia.org/w/load.php...ia.org/w/load.php	190.6 KB	760.9 KB
https://meta.wikimedia.org/w/index.php...a.org/w/index.php	33.7 KB	109.0 KB
https://en.wikipedia.org/w/load.php...ia.org/w/load.php	3.8 KB	13.2 KB
https://auth.wikimedia.org/metawiki/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn	1.4 KB	254 B
https://en.wikipedia.org/w/load.php?lang=en&modules=vue&skin=minerva&version=1hv35	57.8 KB	156.2 KB

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%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 21.2 kB (21164) and that is bigger than the limit of 14.5 kB. Try to make the CSS files fit into 14.5 KB.

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:

URL	Transfer size	Content size
https://en.wikipedia.org/w/load.php...ia.org/w/load.php	20.7 KB	152.5 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.

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)

Title	Advice	Score
Cumulative Layout Shift (cumulativeLayoutShift)	You have a poor cumulative layout shift score (0.4922). 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...ia.org/w/load.php has a header sourcemap that is 1270 characters long.	99
Description: Do not send response headers that are too long.
Offenders: https://en.wikipedia.org/w/load.php...ia.org/w/load.php
Avoid unnecessary headers (unnecessaryHeaders)	There are 24 responses that sets both a max-age and expires header. There are 34 responses that sets a server header.	42
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.svg https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en.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=1knie https://en.wikipedia.org/w/load.php?lang=en&modules=ext.gadget.switcher&skin=minerva&version=1knie 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://en.wikipedia.org/w/load.php?lang=en&modules=vue&skin=minerva&version=1hv35 https://en.wikipedia.org/w/load.php?lang=en&modules=vue&skin=minerva&version=1hv35 https://en.wikipedia.org/beacon/impression...beacon/impression https://upload.wikimedia.org/wikipedia/commons/b/be/Franziska_Heine.png

Privacy advice (88)

Title	Advice	Score
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
Title	Facebook - Wikipedia
Generator	MediaWiki 1.46.0-wmf.7
Width	360
Height	4676
DOM elements	11668
Avg DOM depth	13
Max DOM depth	20
Iframes	0
Script tags	8
Local storage	701.0 KB
Session storage	63 B
Network Information API	4g

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.

Technology	Confidence	Category
MediaWiki	100	Wikis
PHP	100	Programming languages
Apache Traffic Server 9.2.11	100	Web servers
HSTS	100	Security

Visual Metrics

Visual Metrics
First Visual Change	1.166 s
Speed Index	3.565 s
Largest Image	4.566 s
Heading	4.566 s
Last Meaningful Paint	4.566 s
Visual Complete 85%	7.766 s
Visual Complete 95%	12.900 s
Visual Complete 99%	12.933 s
Last Visual Change	12.933 s
Visual Readiness	11.767 s

Browser Metrics

Navigation Timing
backEndTime	536 ms
domContentLoadedTime	2.014 s
domInteractiveTime	2.014 s
domainLookupTime	211 ms
frontEndTime	1.155 s
pageDownloadTime	339 ms
pageLoadTime	2.030 s
redirectionTime	0 ms
serverConnectionTime	200 ms
serverResponseTime	459 ms

Google Web Vitals
Time to first byte (TTFB)	536 ms
First Contentful Paint (FCP)	1.164 s
Largest Contentful Paint (LCP)	1.540 s
Cumulative Layout Shift (CLS)	0.49
Total Blocking Time (TBT)	1.787 s

First Contentful Paint info
Elements that needed recalculate style before FCP	102
Time spent in recalculate style before FCP	52.834 ms

Extra timings
TTFB	536 ms
First Paint	1.164 s
Load Event End	2.030 s
Fully loaded	4.509 s

User Timing marks
mwStartup	1.327 s
mwCentralNoticeBanner	3.873 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 type	P
Element/tag	<p></p>
Render time	1.540 s
Element render delay	1.004 s
TTFB	536 ms
Resource delay	0 ms
Resource load duration	0 ms
Elements that needed recalculate style before LCP	376
Time spent in recalculate style before LCP	93.884 ms
Load time	0 ms
*Size (widthheight)**	100389
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)>

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

0.49219 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.

Score	HTML Element
0.49219	<div id="wmde-banner-app" data-v-app=""></div>,<div id="mw-mf-page-center"></div>
body > div#wmde-banner-app,body > div#mw-mf-viewport > div#mw-mf-page-center

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 duration	Render duration	PreLayout Duration	Style And Layout Duration
383.1 ms	440.1 ms	3.2 ms	3.2 ms	0 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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 279859

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
351.6 ms	392.9 ms	8.8 ms	7.4 ms	1.4 ms
https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva
Forced Style And Layout Duration: 159 ms Invoker: IdleRequestCallback Invoker Type: user-callback Source Function Name: doPropagation Window attribution: self Source char position: 4314

Blocking duration

Work duration

Render duration

PreLayout Duration

Style And Layout Duration

351.6 ms

392.9 ms

8.8 ms

7.4 ms

1.4 ms

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

Forced Style And Layout Duration: 159 ms

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

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
310.3 ms	52.6 ms	343.9 ms	338.2 ms	5.7 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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 279859
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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo
Forced Style And Layout Duration: 1 ms Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 279859
https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva
Forced Style And Layout Duration: 37 ms Invoker: FrameRequestCallback Invoker Type: user-callback Source Function Name: flushCssBuffer Window attribution: self Source char position: 3240

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
262.8 ms	265 ms	49.1 ms	39.5 ms	9.6 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 duration	Render duration	PreLayout Duration	Style And Layout Duration
193.3 ms	261.6 ms	3.1 ms	1.7 ms	1.4 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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo
Forced Style And Layout Duration: 34 ms Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 279859

Blocking duration

Work duration

Render duration

PreLayout Duration

Style And Layout Duration

193.3 ms

261.6 ms

3.1 ms

1.7 ms

1.4 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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo

Forced Style And Layout Duration: 34 ms

Invoker: TimerHandler:setTimeout
Invoker Type: user-callback
Window attribution: self
Source char position: 279859

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
169 ms	168 ms	51.2 ms	0 ms	51.2 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
97.3 ms	524.4 ms	1.6 ms	1.6 ms	0 ms
https://en.wikipedia.org/wiki/Facebook
Invoker: https://en.wikipedia.org/wiki/Facebook Invoker Type: classic-script Window attribution: self

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
82.9 ms	25.2 ms	122.1 ms	0 ms	122.1 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
74.9 ms	126.2 ms	10.7 ms	0 ms	10.7 ms
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 38731
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 duration	Render duration	PreLayout Duration	Style And Layout Duration
61.1 ms	114.5 ms	52.4 ms	38.1 ms	14.3 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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 279859
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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 279859
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

Server timings

name	duration	description
cache	0	hit-front
host	0	cp3070

Custom metrics collected through JavaScript

There are no custom configured scripts.

Extra metrics collected using scripting

There are no custom extra metrics from scripting.

CDP Performance

name	value
AudioHandlers	0
AudioWorkletProcessors	0
Documents	42
Frames	24
JSEventListeners	687
LayoutObjects	881
MediaKeySessions	0
MediaKeys	0
Nodes	23572
Resources	39
ContextLifecycleStateObservers	68
V8PerContextDatas	3
WorkerGlobalScopes	0
UACSSResources	0
RTCPeerConnections	0
ResourceFetchers	42
AdSubframes	0
DetachedScriptStates	2
ArrayBufferContents	3
LayoutCount	209
RecalcStyleCount	247
LayoutDuration	417
RecalcStyleDuration	729
DevToolsCommandDuration	912
ScriptDuration	2042
V8CompileDuration	29
TaskDuration	6307
TaskOtherDuration	2178
ThreadTime	16
ProcessTime	20
JSHeapUsedSize	9963036
JSHeapTotalSize	13107200
FirstMeaningfulPaint	1538

Visual Elements

Name	Display Time	X	Y	Width	Height
LargestImage (wikipedia-wordmark-en.svg)	4.566 s	53	333	120	18
<img src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" alt="Wikipedia" width="120" height="18" style="width: 7.5em; height: 1.125em;">
Heading	4.566 s	16	390	328	37
<h1 id="firstHeading" class="firstHeading mw-first-heading"></h1>
LargestContentfulPaint		16	627	328	325
<p></p>

PageXray

How the page is built.

Summary
HTTP version	HTTP/2.0
Total requests	34
Total domains	4
Total transfer size	732.7 KB
Total content size	2.4 MB
Responses missing compression	9
Number of cookies	12
Third party cookies	0

Requests per response code
200	32
204	1
302	1

Largest assets on the page (by transfer size)

URL	Type	Transfer Size	Content Size
https://en.wikipedia...ia.org/w/load.php	javascript	190.6 KB	760.9 KB
https://en.wikipedia.org/wiki/Facebook	html	182.0 KB	1005.3 KB
https://upload.wikim...anziska_Heine.png	image	93.2 KB	92.0 KB
https://upload.wikim...ook_user_page.png	image	82.3 KB	81.1 KB
https://en.wikipedia...ia.org/w/load.php	javascript	57.8 KB	156.2 KB
https://meta.wikimed...a.org/w/index.php	javascript	33.7 KB	109.0 KB
https://en.wikipedia...ia.org/w/load.php	javascript	21.0 KB	63.0 KB
https://en.wikipedia...ia.org/w/load.php	css	20.7 KB	152.5 KB
https://en.wikipedia...ia.org/w/load.php	javascript	8.8 KB	24.7 KB
https://upload.wikim...282023%29.svg.png	image	5.4 KB	4.3 KB
https://upload.wikim...book_icon.svg.png	image	4.3 KB	3.2 KB
https://en.wikipedia...ia.org/w/load.php	javascript	3.8 KB	13.2 KB
https://en.wikipedia...a-wordmark-en.svg	svg	3.5 KB	6.0 KB
https://en.wikipedia...uch/wikipedia.png	image	2.0 KB	1.3 KB
https://en.wikipedia...con/wikipedia.ico	favicon	1.8 KB	2.7 KB
https://en.wikipedia...dia.org/w/api.php	json	1.8 KB	263 B
https://en.wikipedia...ia.org/w/load.php	css	1.6 KB	2.0 KB
https://en.wikipedia...ia.org/w/load.php	javascript	1.5 KB	1.3 KB
https://auth.wikimed...gin/checkLoggedIn	javascript	1.4 KB	254 B
https://en.wikipedia...ia.org/w/load.php	svg	1.3 KB	707 B

Requests and sizes per content type

Content	Transfer Size	Content Size	Requests
html	182.0 KB	1005.3 KB	1
css	22.3 KB	154.4 KB	2
javascript	318.8 KB	1.1 MB	8
image	188.5 KB	182.1 KB	6
svg	17.1 KB	10.4 KB	13
json	1.8 KB	263 B	1
favicon	1.8 KB	2.7 KB	1
plain	611 B	0 b	1
Total	732.7 KB	2.4 MB	33

Data per domain

Domain	Total download time	Transfer Size	Content Size	Requests
en.wikipedia.org	5.206 s	511.2 KB	2.1 MB	27
upload.wikimedia.org	2.747 s	186.4 KB	180.8 KB	5
meta.wikimedia.org	129 ms	33.7 KB	109.0 KB	1
auth.wikimedia.org	208 ms	1.4 KB	254 B	1

Expires and last modified statistics

type	min	median	max
Expires	0 seconds	4 weeks	1 year
Last modified	12 seconds	8 weeks	2 years

Console log

The page logs the following messages to the console.

Level	Message
INFO	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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo 221:971 "mw.xLab.getExperiment(): The \"xlab-mw-module-loaded-v2\" experiment isn't registered. Is the experiment configured and running?"
INFO	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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo 221:971 "mw.xLab.getExperiment(): The \"fy2025-26-we3.1-image-browsing-ab-test\" experiment isn't registered. Is the experiment configured and running?"
INFO	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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo 221:971 "mw.xLab.getExperiment(): The \"image-browsing-enwiki\" experiment isn't registered. Is the experiment configured and running?"
INFO	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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo 221:971 "mw.xLab.getExperiment(): The \"fy25-26-we-1-1-19-mobile-section-dead-end-phase-2\" experiment isn't registered. Is the experiment configured and running?"
INFO	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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo 221:971 "mw.xLab.getExperiment(): The \"logged-out-retention-round2\" experiment isn't registered. Is the experiment configured and running?"
INFO	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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo 221:971 "mw.xLab.getExperiment(): The \"synth-aa-test-traffic-impact\" experiment isn't registered. Is the experiment configured and running?"
INFO	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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo 221:971 "mw.xLab.getExperiment(): The \"sticky-headers\" experiment isn't registered. Is the experiment configured and running?"
INFO	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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo 221:971 "mw.xLab.getExperiment(): The \"fy25-26-we-3-1-5-mint-readers\" experiment isn't registered. Is the experiment configured and running?"
INFO	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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo 677:14135 "Hello friend! 🍦\n\nWikipedia is powered by MediaWiki. MediaWiki is open source software and we're always keen to hear from fellow developers about what you love (😍) or what we could be doing better (😱).\n\n💪 Or work for us @ https://wikimediafoundation.org/about/jobs/"

Requests loaded after onLoad event

Included requests done after load event end.

Content	Transfer Size	Requests
html	0 b	0
css	0 b	0
javascript	96.8 KB	4
image	95.2 KB	2
font	0 b	0
json	1.8 KB	1
favicon	1.8 KB	1
plain	611 B	1
Total	196.2 KB	10

Requests loaded after onContentLoad

Includes requests done after DOM content loaded.

Content	Transfer Size	Requests
html	0 b	0
css	0 b	0
javascript	96.8 KB	4
image	95.2 KB	2
font	0 b	0
json	1.8 KB	1
favicon	1.8 KB	1
plain	611 B	1
Total	196.2 KB	10

Render blocking requests

Render blocking information directly from Chrome.

Blocking	In body parser blocking	Potentially blocking
2	0	1

Render information

URL	Type
https://en.wikipedia...ia.org/w/load.php	non_blocking
https://en.wikipedia...ia.org/w/load.php	non_blocking
https://meta.wikimed...a.org/w/index.php	non_blocking
https://en.wikipedia...ia.org/w/load.php	potentially_blocking
https://en.wikipedia...ia.org/w/load.php	blocking
https://en.wikipedia...ia.org/w/load.php	non_blocking
https://en.wikipedia...ia.org/w/load.php	non_blocking
https://en.wikipedia...ia.org/w/load.php	blocking
https://en.wikipedia...ia.org/w/load.php	non_blocking
https://auth.wikimed...gin/checkLoggedIn	non_blocking
https://en.wikipedia...alAutoLogin/start	non_blocking

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.

Download trace log

Long Tasks

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

Type	Quantity	Total duration (ms)
Total Blocking Time		1787
Max Potential First Input Delay		429
Long Tasks before First Paint	1	135
Long Tasks before First Contentful Paint	1	135
Long Tasks before Largest Contentful Paint	2	269
Long Tasks after Load Event End	11	2099
Total Long Tasks	15	2622

CPU last long task happened at 4.584 s

Individual Long Tasks

name	startTime	duration	containerType
unknown	1007	135	window
unknown	1397	134	window
self	1702	167	window
unknown	1870	87	window
self	2061	263	window
self	2326	52	window
self	2435	58	window
self	2548	64	window
self	2622	429	window
self	3115	355	window
self	3490	240	window
self	3829	57	window
self	4040	392	window
self	4461	74	window
self	4584	115	window

CPU time spent

Calculated using Tracium.

Categories (ms)
parseHTML	319
styleLayout	1147
paintCompositeRender	263
scriptParseCompile	29
scriptEvaluation	2048
garbageCollection	28
other	1808

Events (ms)
FunctionCall	1747
RunTask	1034
UpdateLayoutTree	736
Layout	403
ParseHTML	305
Layerize	156
Paint	154
PrePaint	149
Commit	92
v8.run	89
V8.HandleInterrupts	85
DecodedDataDocumentParser::AppendBytes	82
CpuProfiler::StartProfiling	79
DocumentLoader::BodyLoadingFinished	73
IntersectionObserverController::computeIntersections	66
RunMicrotasks	64
HitTest	42
UpdateLayer	36
v8.compile	29
PaintImage	28
ParseAuthorStyleSheet	14
DocumentLoader::CommitNavigation	14
V8.BytecodeBudgetInterrupt	14
v8.callFunction	12
EventDispatch	12
V8.GC_SCAVENGER_SCAVENGE_PARALLEL	12
DocumentLoader::FinishedLoading	11

Time spent per request

URL	CPU time (ms)
https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva	2068
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%2CwikimediaEvents%2CxLab%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.relatedArticles.readMore.bootstrap%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%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=1y6wo	985
https://meta.wikimedia.org/w/index.php?title=Special:BannerLoader&campaign=WMDE_FR_2025_Mobile_EN_ty&banner=WMDE_FR_2025_Mobile_EN_ty_var&uselang=en&debug=false	62
https://en.wikipedia.org/wiki/Facebook	13

| afterPageCompleteCheck.jpg | layoutShift.jpg | largestContentfulPaint.jpg |

Screenshots

afterPageCompleteCheck.jpg

layoutShift.jpg

largestContentfulPaint.jpg

Run 3 summary

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

Summary

Waterfall

Video

Filmstrip

Coach

Coach score

Performance advice (77)

Best practice advice (73)

Privacy advice (88)

Page info

Technologies used to build the page.

Visual Metrics

Browser Metrics

Largest Contentful Paint

Detected Cumulative Layout Shift

Long Animation Frames

Server timings

Custom metrics collected through JavaScript

Extra metrics collected using scripting

CDP Performance

Visual Elements

PageXray

Largest assets on the page (by transfer size)

Requests and sizes per content type

Data per domain

Expires and last modified statistics

Console log

Requests loaded after onLoad event

Requests loaded after onContentLoad

Render blocking requests

Render information

CPU

Long Tasks

Individual Long Tasks

CPU time spent

Time spent per request

Screenshots