Run 1 for https://en.wikipedia.org/wiki/Barack

Summary

Metric	Value
Page metrics
Performance score	89
Total page size	415.7 KB
Requests	11
Timing metrics
TTFB	124 ms
First Paint	780 ms
Fully Loaded	3.557 s
Google Web Vitals
TTFB	124 ms
First Contentful Paint (FCP)	780 ms
Largest Contentful Paint (LCP)	780 ms
Cumulative Layout Shift (CLS)	0.55
Total Blocking Time	2.011 s
Max Potential FID	604 ms
CPU metrics
CPU long tasks	19
CPU last long task happens at	11.488 s
Visual Metrics
First Visual Change	767 ms
Speed Index	7.696 s
Visual Complete 85%	12.200 s
Visual Complete 99%	14.000 s
Last Visual Change	14.200 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

0.3 sCPU Long Task duration 65 msmwStartup 246 ms

0.7 sCPU Long Task duration 107 ms

0.8 sFirst Visual Change 767 msFirst Contentful Paint 780 msLCP <P> 780 ms

0.9 sCPU Long Task duration 119 ms

1 s

1.1 sCPU Long Task duration 63 ms

1.2 sCPU Long Task duration 65 ms

1.3 sCPU Long Task duration 304 ms

1.4 s

1.5 s

1.6 sCPU Long Task duration 76 ms

1.7 sDOM Content Loaded Time 1.667 sPage Load Time 1.686 s

1.8 sCPU Long Task duration 51 ms

1.9 sCPU Long Task duration 127 ms

2 s

2.1 sCPU Long Task duration 54 ms

2.2 sCPU Long Task duration 459 ms

2.7 sCPU Long Task duration 68 ms

2.8 sCPU Long Task duration 63 ms

2.9 sCPU Long Task duration 309 ms

3.2 sCPU Long Task duration 188 ms

3.4 sCPU Long Task duration 95 ms

3.5 smwCentralNoticeBanner 3.453 s

3.6 sCPU Long Task duration 604 msFully Loaded 3.557 s

4 s

4.2 s

4.3 sCPU Long Task duration 85 ms

6.2 s

6.3 s

6.4 s

6.7 s

6.8 s

11.5 sCPU Long Task duration 131 ms

11.7 sLayout Shift 0.00732 11.696 s

11.8 sLayout Shift 0.00937 11.730 sLayout Shift 0.01125 11.759 sLayout Shift 0.01406 11.792 s

11.9 sLayout Shift 0.01875 11.822 sLayout Shift 0.01052 11.852 sLayout Shift 0.02656 11.883 s

12 sLayout Shift 0.03364 11.918 sLayout Shift 0.04531 11.949 sLayout Shift 0.05671 11.980 s

12.1 sLayout Shift 0.06094 12.014 sLayout Shift 0.05215 12.044 sLayout Shift 0.04070 12.074 s

12.2 sLayout Shift 0.03281 12.105 sLayout Shift 0.01321 12.133 sLayout Shift 0.02241 12.162 sLayout Shift 0.01875 12.198 sVisual Complete 85% 12.200 s

12.3 sLayout Shift 0.01563 12.231 sLayout Shift 0.01262 12.267 s

12.4 sLayout Shift 0.01094 12.301 sLayout Shift 0.00901 12.331 sLayout Shift 0.00781 12.360 sLayout Shift 0.00647 12.388 s

12.5 sLayout Shift 0.00625 12.421 sLayout Shift 0.00257 12.480 s

12.6 s

12.7 sVisual Complete 95% 12.667 sLargest Image 12.667 sHeading 12.667 s

12.8 s

12.9 s

13 s

13.1 s

13.2 s

13.3 s

13.4 s

13.5 s

13.7 s

13.9 s

14 sVisual Complete 99% 14.000 s

14.1 s

14.2 sLast Visual Change 14.200 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 86
Performance score 89
Privacy score 88
Best practice score 74

Performance advice (89)

Title

Advice

Score

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 19 CPU long tasks with the total of 3.033 s. The total blocking time is 2.011 s and 2 long tasks before first contentful paint with total time of 172 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:

self

unknown

self

unknown

self

unknown

self

Avoid extra requests by setting cache headers (cacheHeaders)

The page has 3 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 111.9 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/commons/thumb/8/8d/President_Barack_Obama..._Barack_Obama.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Barack_Obama_signature...signature.svg.png

https://meta.wikimedia.org/w/index.php...a.org/w/index.php

Long cache headers is good (cacheHeadersLong)

The page has 1 request 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

Make each CSS response small (optimalCssSize)

https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.styles%7Cext.phonos.icons%2Cstyles%7Cext.relatedArticles.styles%7Cext.tmh.player.styles%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cmediawiki.hlist%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 21.6 kB (21557) 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	21.1 KB	154.4 KB

Don't use private headers on static content (privateAssets)

The page has 2 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/Barack_Obama

https://meta.wikimedia.org/w/index.php...a.org/w/index.php

Best practice advice (74)

Title	Advice	Score
Cumulative Layout Shift (cumulativeLayoutShift)	You have a poor cumulative layout shift score (0.5458). 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.
Avoid unnecessary headers (unnecessaryHeaders)	There are 6 responses that sets both a max-age and expires header. There are 11 responses that sets a server header.	83
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/Barack_Obama 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://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/President_Barack_Obama..._Barack_Obama.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Barack_Obama_signature...signature.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://meta.wikimedia.org/w/index.php...a.org/w/index.php https://en.wikipedia.org/beacon/impression...beacon/impression

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/Barack_Obama
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/Barack_Obama

Page info

Page info
Title	Barack Obama - Wikipedia
Generator	MediaWiki 1.46.0-wmf.5
Width	360
Height	6945
DOM elements	14235
Avg DOM depth	14
Max DOM depth	23
Iframes	0
Script tags	8
Local storage	704.4 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
HSTS	100	Security

Visual Metrics

Visual Metrics
First Visual Change	767 ms
Speed Index	7.696 s
Largest Image	12.667 s
Heading	12.667 s
Last Meaningful Paint	12.667 s
Visual Complete 85%	12.200 s
Visual Complete 95%	12.667 s
Visual Complete 99%	14.000 s
Last Visual Change	14.200 s
Visual Readiness	13.433 s

Browser Metrics

Navigation Timing
backEndTime	124 ms
domContentLoadedTime	1.667 s
domInteractiveTime	1.666 s
domainLookupTime	0 ms
frontEndTime	1.354 s
pageDownloadTime	208 ms
pageLoadTime	1.686 s
redirectionTime	0 ms
serverConnectionTime	0 ms
serverResponseTime	327 ms

Google Web Vitals
Time to first byte (TTFB)	124 ms
First Contentful Paint (FCP)	780 ms
Largest Contentful Paint (LCP)	780 ms
Cumulative Layout Shift (CLS)	0.55
Total Blocking Time (TBT)	2.011 s

First Contentful Paint info
Elements that needed recalculate style before FCP	100
Time spent in recalculate style before FCP	54.129 ms

Extra timings
TTFB	124 ms
First Paint	780 ms
Load Event End	1.686 s
Fully loaded	3.557 s

User Timing marks
mwStartup	246 ms
mwCentralNoticeBanner	3.453 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	780 ms
Element render delay	656 ms
TTFB	124 ms
Resource delay	0 ms
Resource load duration	0 ms
Elements that needed recalculate style before LCP	100
Time spent in recalculate style before LCP	54.129 ms
Load time	0 ms
*Size (widthheight)**	76191
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

0.54578 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
0.06094	<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
0.05671	<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
0.05215	<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
0.04531	<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
0.04070	<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
0.03364	<div id="wmde-banner-app" data-v-app=""></div>,<div id="mw-mf-page-center"></div>,<table class="infobox vcard"></table>
body > div#wmde-banner-app,body > div#mw-mf-viewport > div#mw-mf-page-center,body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > section#mf-section-0 > table
0.03281	<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
0.02656	<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
0.02241	<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
0.01875	<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
0.01875	<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
0.01563	<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
0.01406	<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
0.01321	<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
0.01262	<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
0.01125	<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
0.01094	<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
0.01052	<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
0.00937	<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
0.00901	<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
0.00781	<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
0.00732	<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
0.00647	<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
0.00625	<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
0.00257	<div id="wmde-banner-app" data-v-app=""></div>
body > div#wmde-banner-app

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
577.5 ms	605.7 ms	22.8 ms	13.7 ms	9.1 ms
https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva
Forced Style And Layout Duration: 313 ms Invoker: IdleRequestCallback Invoker Type: user-callback Source Function Name: doPropagation Window attribution: self Source char position: 4314
Invoker: FrameRequestCallback Invoker Type: user-callback Window attribution: self Source char position: 58790

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
411.4 ms	491 ms	2.2 ms	2.2 ms	0 ms
https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.ux-enhancements%7Cext.phonos.init%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cjquery%7Cmediawiki.page.media&skin=minerva&version=tc8h7
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 61683
https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.ux-enhancements%7Cext.phonos.init%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cjquery%7Cmediawiki.page.media&skin=minerva&version=tc8h7
Forced Style And Layout Duration: 23 ms Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 61683

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
292.7 ms	316.6 ms	38.6 ms	37.5 ms	1.1 ms
https://en.wikipedia.org/wiki/Barack_Obama
Invoker: https://en.wikipedia.org/wiki/Barack_Obama Invoker Type: classic-script Window attribution: self

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
257.5 ms	21.8 ms	296.1 ms	289.2 ms	6.9 ms
https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.ux-enhancements%7Cext.phonos.init%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cjquery%7Cmediawiki.page.media&skin=minerva&version=tc8h7
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 61683
https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva
Forced Style And Layout Duration: 36 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
139.9 ms	202.2 ms	1.8 ms	1.8 ms	0 ms
https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.ux-enhancements%7Cext.phonos.init%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cjquery%7Cmediawiki.page.media&skin=minerva&version=tc8h7
Forced Style And Layout Duration: 26 ms Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 61683

Blocking duration

Work duration

Render duration

PreLayout Duration

Style And Layout Duration

139.9 ms

202.2 ms

1.8 ms

0 ms

https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.ux-enhancements%7Cext.phonos.init%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cjquery%7Cmediawiki.page.media&skin=minerva&version=tc8h7

Forced Style And Layout Duration: 26 ms

Invoker: TimerHandler:setTimeout
Invoker Type: user-callback
Window attribution: self
Source char position: 61683

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
128.1 ms	127.9 ms	51 ms	38.7 ms	12.3 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=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
116.5 ms	552.2 ms	1.8 ms	1.8 ms	0 ms
https://en.wikipedia.org/wiki/Barack_Obama
Invoker: https://en.wikipedia.org/wiki/Barack_Obama Invoker Type: classic-script Window attribution: self
https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva
Invoker: https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva Invoker Type: classic-script Window attribution: self

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
83.1 ms	131.1 ms	2.1 ms	2 ms	0.1 ms
Forced Style And Layout Duration: 113 ms Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 69797

Blocking duration

Work duration

Render duration

PreLayout Duration

Style And Layout Duration

83.1 ms

131.1 ms

2.1 ms

2 ms

0.1 ms

Forced Style And Layout Duration: 113 ms

Invoker: TimerHandler:setTimeout
Invoker Type: user-callback
Window attribution: self
Source char position: 69797

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
72 ms	92.6 ms	53.8 ms	38.3 ms	15.5 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.cite.ux-enhancements%7Cext.phonos.init%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cjquery%7Cmediawiki.page.media&skin=minerva&version=tc8h7
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 61683
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
69.2 ms	15.9 ms	108.3 ms	0 ms	108.3 ms
No availible script information.

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	25
Frames	23
JSEventListeners	837
LayoutObjects	1223
MediaKeySessions	0
MediaKeys	0
Nodes	33322
Resources	58
ContextLifecycleStateObservers	54
V8PerContextDatas	2
WorkerGlobalScopes	0
UACSSResources	3
RTCPeerConnections	0
ResourceFetchers	25
AdSubframes	0
DetachedScriptStates	0
ArrayBufferContents	0
LayoutCount	245
RecalcStyleCount	254
LayoutDuration	486
RecalcStyleDuration	771
DevToolsCommandDuration	752
ScriptDuration	2036
V8CompileDuration	30
TaskDuration	7193
TaskOtherDuration	3118
ThreadTime	16
ProcessTime	62
JSHeapUsedSize	12371500
JSHeapTotalSize	17309696
FirstMeaningfulPaint	934

Visual Elements

Name	Display Time	X	Y	Width	Height
LargestImage (wikipedia-wordmark-en.svg)	12.667 s	53	376	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	12.667 s	16	433	328	37
<h1 id="firstHeading" class="firstHeading mw-first-heading"></h1>

PageXray

How the page is built.

Summary
HTTP version	HTTP/2.0
Total requests	11
Total domains	3
Total transfer size	415.7 KB
Total content size	1.8 MB
Responses missing compression	4
Number of cookies	4
Third party cookies	0

Requests per response code
200	10
204	1

Largest assets on the page (by transfer size)

URL	Type	Transfer Size	Content Size
https://en.wikipedia...wiki/Barack_Obama	html	235.1 KB	1.3 MB
https://meta.wikimed...a.org/w/index.php	javascript	53.9 KB	204.1 KB
https://upload.wikim..._Barack_Obama.jpg	image	51.0 KB	49.9 KB
https://en.wikipedia...ia.org/w/load.php	javascript	45.0 KB	154.3 KB
https://en.wikipedia...ia.org/w/load.php	css	21.1 KB	154.4 KB
https://upload.wikim...signature.svg.png	image	4.4 KB	3.3 KB
https://en.wikipedia...ia.org/w/load.php	svg	1.3 KB	707 B
https://en.wikipedia...ia.org/w/load.php	svg	1.2 KB	414 B
https://en.wikipedia...ia.org/w/load.php	svg	1.1 KB	318 B
https://en.wikipedia...ia.org/w/load.php	svg	1.1 KB	326 B
https://en.wikipedia...beacon/impression	plain	611 B	0 b

Requests and sizes per content type

Content	Transfer Size	Content Size	Requests
html	235.1 KB	1.3 MB	1
css	21.1 KB	154.4 KB	1
javascript	98.9 KB	358.4 KB	2
image	55.4 KB	53.2 KB	2
svg	4.7 KB	1.7 KB	4
plain	611 B	0 b	1
Total	415.7 KB	1.8 MB	11

Data per domain

Domain	Total download time	Transfer Size	Content Size	Requests
en.wikipedia.org	1.681 s	306.4 KB	1.6 MB	8
upload.wikimedia.org	350 ms	55.4 KB	53.2 KB	2
meta.wikimedia.org	148 ms	53.9 KB	204.1 KB	1

Expires and last modified statistics

type	min	median	max
Expires	0 seconds	5 minutes	4 weeks
Last modified	7 minutes	16 weeks	29 weeks

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.checkUser.clientHints%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.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.ready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagesummary.styles%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=u89ha 209:971 "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.checkUser.clientHints%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.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.ready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagesummary.styles%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=u89ha 209:971 "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.checkUser.clientHints%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.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.ready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagesummary.styles%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=u89ha 209:971 "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.checkUser.clientHints%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.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.ready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagesummary.styles%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=u89ha 209:971 "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.checkUser.clientHints%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.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.ready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagesummary.styles%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=u89ha 209:971 "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.checkUser.clientHints%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.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.ready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagesummary.styles%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=u89ha 661:14201 "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/"
INFO	https://en.wikipedia.org/w/load.php?lang=en&modules=ext.xLab&skin=minerva&version=1idqn 0:971 "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.xLab&skin=minerva&version=1idqn 0:971 "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.xLab&skin=minerva&version=1idqn 0:971 "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.xLab&skin=minerva&version=1idqn 0:971 "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.xLab&skin=minerva&version=1idqn 0:971 "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.xLab&skin=minerva&version=1idqn 0:971 "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=mobile.init&skin=minerva&version=1v12n 0:14201 "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	53.9 KB	1
image	0 b	0
font	0 b	0
plain	611 B	1
Total	54.5 KB	2

Requests loaded after onContentLoad

Includes requests done after DOM content loaded.

Content	Transfer Size	Requests
html	0 b	0
css	0 b	0
javascript	53.9 KB	1
image	0 b	0
font	0 b	0
plain	611 B	1
Total	54.5 KB	2

Render blocking requests

Render blocking information directly from Chrome.

Blocking	In body parser blocking	Potentially blocking
1	0	0

Render information

URL	Type
https://meta.wikimed...a.org/w/index.php	non_blocking
https://en.wikipedia...ia.org/w/load.php	non_blocking
https://en.wikipedia...ia.org/w/load.php	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		2011
Max Potential First Input Delay		604
Long Tasks before First Paint	2	172
Long Tasks before First Contentful Paint	2	172
Long Tasks before Largest Contentful Paint	2	172
Long Tasks after Load Event End	12	2234
Total Long Tasks	19	3033

CPU last long task happened at 11.488 s

Individual Long Tasks

name	startTime	duration	containerType
self	245	65	window
unknown	666	107	window
unknown	808	119	window
self	1004	63	window
unknown	1150	65	window
self	1278	304	window
unknown	1582	76	window
self	1760	51	window
self	1898	127	window
self	2025	54	window
self	2161	459	window
self	2635	68	window
self	2728	63	window
self	2813	309	window
self	3133	188	window
self	3366	95	window
self	3501	604	window
self	4249	85	window
self	11488	131	window

CPU time spent

Calculated using Tracium.

Categories (ms)
parseHTML	511
styleLayout	1226
paintCompositeRender	753
scriptParseCompile	32
scriptEvaluation	2003
garbageCollection	66
other	2864

Events (ms)
FunctionCall	1734
RunTask	955
CpuProfiler::StartProfiling	942
UpdateLayoutTree	747
Paint	486
ParseHTML	485
Layout	462
PrePaint	350
Layerize	230
PaintImage	178
DocumentLoader::BodyLoadingFinished	95
IntersectionObserverController::computeIntersections	81
DecodedDataDocumentParser::AppendBytes	79
Commit	75
V8.HandleInterrupts	61
v8.run	58
RunMicrotasks	55
v8.produceCache	37
UpdateLayer	34
v8.compile	32
HitTest	30
V8.GC_MC_INCREMENTAL_EMBEDDER_TRACING	19
DocumentLoader::CommitNavigation	16
ParseAuthorStyleSheet	15
v8.callFunction	14
HTMLDocumentParser::MaybeFetchQueuedPreloads	13
V8.BytecodeBudgetInterrupt	13
EventDispatch	12

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	2189
https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.ux-enhancements%7Cext.phonos.init%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cjquery%7Cmediawiki.page.media&skin=minerva&version=tc8h7	910
https://meta.wikimedia.org/w/index.php?title=Special:BannerLoader&campaign=WMDE_FR_2025_Mobile_EN_02&banner=WMDE_FR_2025_Mobile_EN_02_ctrl&uselang=en&debug=false	98
https://en.wikipedia.org/wiki/Barack_Obama	36
https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.display&skin=minerva&version=zoztc	31
https://en.wikipedia.org/w/load.php?lang=en&modules=vue&skin=minerva&version=1hv35	23

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

Screenshots

afterPageCompleteCheck.jpg

layoutShift.jpg

largestContentfulPaint.jpg

Run 1 summary

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

Summary

Waterfall

Video

Filmstrip

Coach

Coach score

Performance advice (89)

Best practice advice (74)

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