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

Summary

Metric	Value
Page metrics
Performance score	75
Total page size	587.6 KB
Requests	31
Timing metrics
TTFB	767 ms
First Paint	1.687 s
Fully Loaded	5.602 s
Google Web Vitals
TTFB	767 ms
First Contentful Paint (FCP)	1.687 s
Largest Contentful Paint (LCP)	2.139 s
Cumulative Layout Shift (CLS)	0.08
Total Blocking Time	1.827 s
Max Potential FID	542 ms
CPU metrics
CPU long tasks	14
CPU last long task happens at	5.338 s
Visual Metrics
First Visual Change	1.700 s
Speed Index	2.990 s
Visual Complete 85%	5.333 s
Visual Complete 99%	13.666 s
Last Visual Change	13.700 s

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| Waterfall | | Download HAR |

Waterfall

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| Video | Download |

Video

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| Filmstrip |

Filmstrip

Use--filmstrip.showAll to show all filmstrips.

0 s

1.6 sCPU Long Task duration 134 ms

1.7 sFirst Contentful Paint 1.687 sFirst Visual Change 1.700 s

1.8 smwStartup 1.722 s

2 sCPU Long Task duration 178 ms

2.1 s

2.2 sLCP <P> 2.139 s

2.3 sCPU Long Task duration 195 ms

2.4 s

2.5 sCPU Long Task duration 65 ms

2.6 sDOM Content Loaded Time 2.587 s

2.9 s

3.2 sCPU Long Task duration 57 ms

3.3 sPage Load Time 3.209 sCPU Long Task duration 229 ms

3.4 s

3.5 sCPU Long Task duration 81 ms

3.6 sCPU Long Task duration 91 ms

3.7 sCPU Long Task duration 169 ms

3.9 sCPU Long Task duration 400 ms

4.3 sCPU Long Task duration 90 ms

4.4 sCPU Long Task duration 246 ms

4.7 sCPU Long Task duration 542 ms

5 s

5.3 smwCentralNoticeBanner 5.282 sLayout Shift 0.08394 5.296 s

5.4 sVisual Complete 85% 5.333 sVisual Complete 95% 5.333 sLargest Image 5.333 sHeading 5.333 sCPU Long Task duration 134 ms

5.5 s

5.6 s

5.7 sFully Loaded 5.602 s

5.8 s

5.9 s

6 s

6.1 s

6.2 s

6.3 s

6.4 s

6.5 s

6.6 s

6.7 s

6.8 s

7.1 s

7.3 s

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7.6 s

7.9 s

8 s

8.3 s

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8.7 s

13.7 sVisual Complete 99% 13.666 sLast Visual Change 13.700 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 8.0.2.

Coach score

Total score 81
Performance score 75
Privacy score 94
Best practice score 82

Performance advice (75)

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.m.wikipedia.beta.wmflabs.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.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php

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 14 CPU long tasks with the total of 2.611 s. The total blocking time is 1.827 s and 1 long task before first contentful paint with total time of 134 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 3 redirects. 1 of the redirects are from the base domain, please fix them! 2 requests are from other domains, it could be 3rd-party assets doing unnecessary redirects. :(

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.beta.wmflabs.org/wiki/Special:CentralAutoLogin/start...alAutoLogin/start

https://meta.wikimedia.beta.wmflabs.org/w/index.php...s.org/w/index.php

https://en.m.wikipedia.beta.wmflabs.org/wiki/Special:CentralAutoLogin/start...alAutoLogin/start

Avoid extra requests by setting cache headers (cacheHeaders)

The page has 11 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 68.4 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/8/8a/Loudspeaker.svg/22px-Loudspeaker.svg.png

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://upload.wikimedia.org/wikipedia/commons/thumb/a/a5/20090124_WeeklyAddress...lyAddress.ogv.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/President_Obama_on_Dea...bin_Laden.ogv.jpg

https://en.wikipedia.beta.wmflabs.org/wiki/Special:CentralAutoLogin/start...alAutoLogin/start

https://meta.wikimedia.beta.wmflabs.org/w/index.php...s.org/w/index.php

https://en.m.wikipedia.beta.wmflabs.org/wiki/Special:CentralAutoLogin/start...alAutoLogin/start

https://upload.wikimedia.org/wikipedia/commons/1/14/Favicon-beta-wikipedia.png

https://meta.m.wikimedia.beta.wmflabs.org/w/index.php...s.org/w/index.php

https://login.wikimedia.beta.wmflabs.org/wiki/Special:CentralAutoLogin/checkLogg...gin/checkLoggedIn

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.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php

https://en.m.wikipedia.beta.wmflabs.org/w/api.php?action=webapp-manifest

Total JavaScript size shouldn't be too big (javascriptSize)

The total JavaScript transfer size is 308 kB and the uncompressed size is 1.3 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.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php	19.7 KB	59.2 KB
https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php	278.7 KB	1.2 MB
https://meta.m.wikimedia.beta.wmflabs.org/w/index.php...s.org/w/index.php	1.2 KB	497 B
https://login.wikimedia.beta.wmflabs.org/wiki/Special:CentralAutoLogin/checkLogg...gin/checkLoggedIn	1.2 KB	252 B

Make each CSS response small (optimalCssSize)

https://en.m.wikipedia.beta.wmflabs.org/w/load.php?lang=en&modules=ext.cite.styles%7Cext.dismissableSiteNotice.styles%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.data-bridge.externalModifiers%7Cwikibase.client.init&only=styles&skin=minerva size is 18.1 kB (18069) 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.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php	17.6 KB	127.7 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.m.wikipedia.beta.wmflabs.org/wiki/Barack_Obama

https://en.m.wikipedia.beta.wmflabs.org/wiki/Special:CentralAutoLogin/start...alAutoLogin/start

Best practice advice (82)

Title	Advice	Score
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.m.wikiped...wiki/Barack_Obama has a header content-security-policy that is 3376 characters long. https://en.m.wikiped...bs.org/w/load.php has a header sourcemap that is 1436 characters long.	98
Description: Do not send response headers that are too long.
Offenders: https://en.m.wikipedia.beta.wmflabs.org/wiki/Barack_Obama https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php
Avoid too many third party requests (thirdParty)	The page do 19% requests to third party domains (6 requests and 66 kB). First party is 25 requests and 535.8 kB. The regex .wmflabs. was used to calculate first/third party requests.	50
Description: Do not load most of your content from third party URLs.
Avoid unnecessary headers (unnecessaryHeaders)	There are 19 responses that sets both a max-age and expires header. There are 31 responses that sets a server header.	50
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.m.wikipedia.beta.wmflabs.org/wiki/Barack_Obama https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/Loudspeaker.svg/22px-Loudspeaker.svg.png 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://upload.wikimedia.org/wikipedia/commons/thumb/a/a5/20090124_WeeklyAddress...lyAddress.ogv.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/President_Obama_on_Dea...bin_Laden.ogv.jpg https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.m.wikipedia.beta.wmflabs.org/w/load.php...bs.org/w/load.php https://en.wikipedia.beta.wmflabs.org/wiki/Special:CentralAutoLogin/start...alAutoLogin/start https://meta.wikimedia.beta.wmflabs.org/w/index.php...s.org/w/index.php https://en.m.wikipedia.beta.wmflabs.org/w/api.php?action=webapp-manifest https://en.m.wikipedia.beta.wmflabs.org/w/api.php?action=webapp-manifest https://en.m.wikipedia.beta.wmflabs.org/wiki/Special:CentralAutoLogin/start...alAutoLogin/start https://upload.wikimedia.org/wikipedia/commons/1/14/Favicon-beta-wikipedia.png https://meta.m.wikimedia.beta.wmflabs.org/w/index.php...s.org/w/index.php https://login.wikimedia.beta.wmflabs.org/wiki/Special:CentralAutoLogin/checkLogg...gin/checkLoggedIn https://en.m.wikipedia.beta.wmflabs.org/static/apple-touch/wikipedia.png https://en.m.wikipedia.beta.wmflabs.org/static/apple-touch/wikipedia.png

Privacy advice (94)

Title	Advice	Score
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.m.wikipedia.beta.wmflabs.org/wiki/Barack_Obama

Page info

Page info
Title	Barack Obama - Wikipedia, the free encyclopedia
Generator	MediaWiki 1.44.0-alpha
Width	360
Height	6277
DOM elements	10858
Avg DOM depth	13
Max DOM depth	21
Iframes	0
Script tags	7
Local storage	852.5 KB
Session storage	0 b
Network Information API	4g

Resource Hints
dns-prefetch
https://meta.wikimedia.beta.wmflabs.org/
https://login.wikimedia.beta.wmflabs.org/
preconnect
https://upload.wikimedia.beta.wmflabs.org/

Technologies used to build the page.

Data collected using Wappalyzerversion 6.10.66. Use --browsertime.firefox.includeResponseBodies htmlor --browsertime.chrome.includeResponseBodies htmlto help Wappalyser find more information about technologies used.

Technology	Confidence	Category
MediaWiki	100	Wikis
PHP	100	Programming languages
Apache Traffic Server 9.2.6	100	Web servers
HSTS	100	Security

Visual Metrics

Visual Metrics
First Visual Change	1.700 s
Speed Index	2.990 s
Largest Image	5.333 s
Heading	5.333 s
LargestContentfulPaint	5.333 s
Last Meaningful Paint	5.333 s
Largest Contentful Paint	5.333 s
Visual Complete 85%	5.333 s
Visual Complete 95%	5.333 s
Visual Complete 99%	13.666 s
Last Visual Change	13.700 s
Visual Readiness	12.000 s

Browser Metrics

Navigation Timing
backEndTime	767 ms
domContentLoadedTime	2.587 s
domInteractiveTime	2.587 s
domainLookupTime	178 ms
frontEndTime	1.782 s
pageDownloadTime	660 ms
pageLoadTime	3.209 s
redirectionTime	0 ms
serverConnectionTime	388 ms
serverResponseTime	856 ms

Google Web Vitals
Time to first byte (TTFB)	767 ms
First Contentful Paint (FCP)	1.687 s
Largest Contentful Paint (LCP)	2.139 s
Cumulative Layout Shift (CLS)	0.08
Total Blocking Time (TBT)	1.827 s

First Contentful Paint info
Elements that needed recalculate style before FCP	96
Time spent in recalculate style before FCP	43.232 ms

Extra timings
TTFB	767 ms
First Paint	1.687 s
Load Event End	3.209 s
Fully loaded	5.602 s

User Timing marks
mwStartup	1.722 s
mwCentralNoticeBanner	5.282 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	2.139 s
Elements that needed recalculate style before LCP	447
Time spent in recalculate style before LCP	89.208 ms
Load time	0 ms
*Size (widthheight)**	91887
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(2)> 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(2)>

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

0.08394 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
0.08394	<div class="pre-content heading-holder"></div>,<ul id="p-views" class="page-actions-menu__list"></ul>,<div id="bodyContent" class="content"></div>,<table class="infobox vcard" style="width:22em"></table>
body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div:eq(1),body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div:eq(1) > nav > ul#p-views,body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div#bodyContent,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

Score

HTML Element

0.08394

body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div:eq(1),body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div:eq(1) > nav > ul#p-views,body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div#bodyContent,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

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
499 ms	593.7 ms	6.3 ms	2.6 ms	3.7 ms
https://en.m.wikipedia.beta.wmflabs.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionEventsSampleRate%2CkvStore%2CstartUp%7Cext.centralauth.centralautologin%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.echo.centralauth%7Cext.growthExperiments.SuggestedEditSession%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.errors%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.urlShortener.toolbar%7Cjquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%7Cjquery.client%2Cspinner%7Cjquery.spinner.styles%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmw.config.values.wbDataBridgeConfig%7Cmw.externalguidance.init%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.indicators%7Cskins.minerva.scripts%7Cwikibase.client.data-bridge.init%7Cwikibase.sidebar.tracking&skin=minerva&version=18eeb
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 231132
https://en.m.wikipedia.beta.wmflabs.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionEventsSampleRate%2CkvStore%2CstartUp%7Cext.centralauth.centralautologin%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.echo.centralauth%7Cext.growthExperiments.SuggestedEditSession%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.errors%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.urlShortener.toolbar%7Cjquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%7Cjquery.client%2Cspinner%7Cjquery.spinner.styles%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmw.config.values.wbDataBridgeConfig%7Cmw.externalguidance.init%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.indicators%7Cskins.minerva.scripts%7Cwikibase.client.data-bridge.init%7Cwikibase.sidebar.tracking&skin=minerva&version=18eeb
Forced Style And Layout Duration: 27 ms Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 231132

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
355 ms	410.7 ms	4.3 ms	2.6 ms	1.7 ms
https://en.m.wikipedia.beta.wmflabs.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionEventsSampleRate%2CkvStore%2CstartUp%7Cext.centralauth.centralautologin%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.echo.centralauth%7Cext.growthExperiments.SuggestedEditSession%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.errors%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.urlShortener.toolbar%7Cjquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%7Cjquery.client%2Cspinner%7Cjquery.spinner.styles%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmw.config.values.wbDataBridgeConfig%7Cmw.externalguidance.init%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.indicators%7Cskins.minerva.scripts%7Cwikibase.client.data-bridge.init%7Cwikibase.sidebar.tracking&skin=minerva&version=18eeb
Forced Style And Layout Duration: 5 ms Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 231132

Blocking duration

Work duration

Render duration

PreLayout Duration

Style And Layout Duration

355 ms

410.7 ms

4.3 ms

2.6 ms

1.7 ms

https://en.m.wikipedia.beta.wmflabs.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionEventsSampleRate%2CkvStore%2CstartUp%7Cext.centralauth.centralautologin%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.echo.centralauth%7Cext.growthExperiments.SuggestedEditSession%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.errors%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.urlShortener.toolbar%7Cjquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%7Cjquery.client%2Cspinner%7Cjquery.spinner.styles%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmw.config.values.wbDataBridgeConfig%7Cmw.externalguidance.init%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.indicators%7Cskins.minerva.scripts%7Cwikibase.client.data-bridge.init%7Cwikibase.sidebar.tracking&skin=minerva&version=18eeb

Forced Style And Layout Duration: 5 ms

Invoker: TimerHandler:setTimeout
Invoker Type: user-callback
Window attribution: self
Source char position: 231132

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
286 ms	97.1 ms	245.9 ms	236.4 ms	9.5 ms
https://en.m.wikipedia.beta.wmflabs.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: 4310
https://en.m.wikipedia.beta.wmflabs.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva
Forced Style And Layout Duration: 32 ms Invoker: FrameRequestCallback Invoker Type: user-callback Source Function Name: flushCssBuffer Window attribution: self Source char position: 3233

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
259 ms	229.7 ms	80.3 ms	61.7 ms	18.6 ms
https://en.m.wikipedia.beta.wmflabs.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: 4310
https://en.m.wikipedia.beta.wmflabs.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: 3233

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
210 ms	196.6 ms	64.4 ms	46.1 ms	18.3 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
210 ms	94.1 ms	167.9 ms	149.9 ms	18 ms
https://en.m.wikipedia.beta.wmflabs.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: 4310
https://en.m.wikipedia.beta.wmflabs.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: 3233

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
152 ms	778.6 ms	126.4 ms	0 ms	126.4 ms
https://en.m.wikipedia.beta.wmflabs.org/wiki/Barack_Obama
Invoker: https://en.m.wikipedia.beta.wmflabs.org/wiki/Barack_Obama Invoker Type: classic-script Window attribution: self

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
138 ms	27.1 ms	176.9 ms	0 ms	176.9 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
7 ms	57 ms	0 ms	0 ms	0 ms
https://en.m.wikipedia.beta.wmflabs.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionEventsSampleRate%2CkvStore%2CstartUp%7Cext.centralauth.centralautologin%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.echo.centralauth%7Cext.growthExperiments.SuggestedEditSession%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.errors%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.urlShortener.toolbar%7Cjquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%7Cjquery.client%2Cspinner%7Cjquery.spinner.styles%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmw.config.values.wbDataBridgeConfig%7Cmw.externalguidance.init%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.indicators%7Cskins.minerva.scripts%7Cwikibase.client.data-bridge.init%7Cwikibase.sidebar.tracking&skin=minerva&version=18eeb
Invoker: https://en.m.wikipedia.beta.wmflabs.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionEventsSampleRate%2CkvStore%2CstartUp%7Cext.centralauth.centralautologin%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.echo.centralauth%7Cext.growthExperiments.SuggestedEditSession%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.errors%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.urlShortener.toolbar%7Cjquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%7Cjquery.client%2Cspinner%7Cjquery.spinner.styles%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmw.config.values.wbDataBridgeConfig%7Cmw.externalguidance.init%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.indicators%7Cskins.minerva.scripts%7Cwikibase.client.data-bridge.init%7Cwikibase.sidebar.tracking&skin=minerva&version=18eeb Invoker Type: classic-script Window attribution: self

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
4 ms	52.8 ms	38.2 ms	26.2 ms	12 ms
No availible script information.

Server timings

name	duration	description
cache	0	hit-local
host	0	deployment-cache-text08

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	39
Frames	18
JSEventListeners	1620
LayoutObjects	921
MediaKeySessions	0
MediaKeys	0
Nodes	23740
Resources	32
ContextLifecycleStateObservers	57
V8PerContextDatas	3
WorkerGlobalScopes	0
UACSSResources	0
RTCPeerConnections	0
ResourceFetchers	39
AdSubframes	0
DetachedScriptStates	2
ArrayBufferContents	4
LayoutCount	20
RecalcStyleCount	24
LayoutDuration	229
RecalcStyleDuration	233
DevToolsCommandDuration	517
ScriptDuration	2120
V8CompileDuration	17
TaskDuration	4360
TaskOtherDuration	1244
ThreadTime	18
ProcessTime	21
JSHeapUsedSize	10623188
JSHeapTotalSize	18194432
FirstMeaningfulPaint	2139

Visual Elements

Name	Display Time	X	Y	Width	Height
LargestImage (11px-Loudspeaker.svg.png)	5.333 s	100	403	11	11
<img alt="About this sound" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/Loudspeaker.svg/11px-Loudspeaker.svg.png" decoding="async" width="11" height="11" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/Loudspeaker.svg/17px-Loudspeaker.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/Loudspeaker.svg/22px-Loudspeaker.svg.png 2x" data-file-width="20" data-file-height="20">
Heading	5.333 s	16	139	328	37
<h1 id="firstHeading" class="firstHeading mw-first-heading"></h1>
LargestContentfulPaint	5.333 s	16	369	328	298
<p></p>

PageXray

How the page is built.

Summary
HTTP version	HTTP/2.0
Total requests	31
Total domains	6
Total transfer size	587.6 KB
Total content size	2.5 MB
Responses missing compression	5
Number of cookies	4
Third party cookies	0

Requests per response code
200	28
302	3

Largest assets on the page (by transfer size)

URL	Type	Transfer Size	Content Size
https://en.m.wikiped...bs.org/w/load.php	javascript	278.7 KB	1.2 MB
https://en.m.wikiped...wiki/Barack_Obama	html	185.4 KB	1011.4 KB
https://upload.wikim..._Barack_Obama.jpg	image	43.3 KB	42.4 KB
https://en.m.wikiped...bs.org/w/load.php	javascript	19.7 KB	59.2 KB
https://en.m.wikiped...bs.org/w/load.php	css	17.6 KB	127.7 KB
https://upload.wikim...lyAddress.ogv.jpg	image	9.1 KB	8.1 KB
https://upload.wikim...bin_Laden.ogv.jpg	image	5.7 KB	4.8 KB
https://upload.wikim...signature.svg.png	image	3.2 KB	2.4 KB
https://en.m.wikiped...bs.org/w/load.php	css	2.2 KB	4.3 KB
https://upload.wikim...eta-wikipedia.png	image	2.1 KB	1.2 KB
https://en.m.wikiped...uch/wikipedia.png	image	2.0 KB	1.3 KB
https://en.m.wikiped...abs.org/w/api.php	json	1.5 KB	268 B
https://en.m.wikiped...bs.org/w/load.php	svg	1.2 KB	707 B
https://meta.m.wikim...s.org/w/index.php	javascript	1.2 KB	497 B
https://login.wikime...gin/checkLoggedIn	javascript	1.2 KB	252 B
https://en.m.wikiped...bs.org/w/load.php	svg	1.1 KB	585 B
https://upload.wikim...udspeaker.svg.png	image	1.1 KB	244 B
https://en.m.wikiped...bs.org/w/load.php	svg	1.1 KB	414 B
https://en.m.wikiped...bs.org/w/load.php	svg	1.1 KB	318 B
https://en.m.wikiped...bs.org/w/load.php	svg	1.1 KB	318 B

Requests and sizes per content type

Content	Transfer Size	Content Size	Requests
html	185.4 KB	1011.4 KB	1
css	19.8 KB	132.0 KB	2
javascript	300.8 KB	1.3 MB	4
image	66.4 KB	60.5 KB	7
svg	13.8 KB	4.6 KB	13
json	1.5 KB	268 B	1
Total	587.6 KB	2.5 MB	28

Data per domain

Domain	Total download time	Transfer Size	Content Size	Requests
en.m.wikipedia.beta.wmflabs.org	8.630 s	520.8 KB	2.4 MB	21
upload.wikimedia.org	2.857 s	64.4 KB	59.2 KB	6
en.wikipedia.beta.wmflabs.org	311 ms	N/A	0 b	1
meta.wikimedia.beta.wmflabs.org	374 ms	N/A	0 b	1
meta.m.wikimedia.beta.wmflabs.org	376 ms	1.2 KB	497 B	1
login.wikimedia.beta.wmflabs.org	375 ms	1.2 KB	252 B	1

Expires and last modified statistics

type	min	median	max
Expires	0 seconds	1 day	1 year
Last modified	2 weeks	26 weeks	10 years

Console log

The page logs the following messages to the console.

Level	Message
WARNING	https://en.m.wikipedia.beta.wmflabs.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva 11:307 "This page is using the deprecated ResourceLoader module \"mediawiki.Uri\".\n[1.43] Please use browser native URL."
INFO	https://en.m.wikipedia.beta.wmflabs.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionEventsSampleRate%2CkvStore%2CstartUp%7Cext.centralauth.centralautologin%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.echo.centralauth%7Cext.growthExperiments.SuggestedEditSession%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.errors%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.urlShortener.toolbar%7Cjquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%7Cjquery.client%2Cspinner%7Cjquery.spinner.styles%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmw.config.values.wbDataBridgeConfig%7Cmw.externalguidance.init%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.indicators%7Cskins.minerva.scripts%7Cwikibase.client.data-bridge.init%7Cwikibase.sidebar.tracking&skin=minerva&version=18eeb 926:228 "Learn more about how we build our mobile site @ https://www.mediawiki.org/wiki/Special:MyLanguage/Extension:MobileFrontend"

Level

Message

WARNING

https://en.m.wikipedia.beta.wmflabs.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva 11:307 "This page is using the deprecated ResourceLoader module \"mediawiki.Uri\".\n[1.43] Please use browser native URL."

INFO

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	2.4 KB	2
image	4.0 KB	2
font	0 b	0
json	1.5 KB	1
Total	7.9 KB	8

Requests loaded after onContentLoad

Includes requests done after DOM content loaded.

Content	Transfer Size	Requests
html	0 b	0
css	0 b	0
javascript	2.4 KB	2
image	4.0 KB	2
font	0 b	0
json	1.5 KB	1
Total	7.9 KB	8

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.m.wikiped...bs.org/w/load.php	non_blocking
https://en.m.wikiped...bs.org/w/load.php	potentially_blocking
https://en.m.wikiped...bs.org/w/load.php	blocking
https://en.m.wikiped...bs.org/w/load.php	blocking
https://meta.m.wikim...s.org/w/index.php	non_blocking
https://login.wikime...gin/checkLoggedIn	non_blocking
https://en.wikipedia...alAutoLogin/start	non_blocking
https://meta.wikimed...s.org/w/index.php	non_blocking
https://en.m.wikiped...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		1827
Max Potential First Input Delay		542
Long Tasks before First Paint	1	134
Long Tasks before First Contentful Paint	1	134
Long Tasks before Largest Contentful Paint	2	312
Long Tasks after Load Event End	9	1982
Total Long Tasks	14	2611

CPU last long task happened at 5.338 s

Individual Long Tasks

name	startTime	duration	containerType
unknown	1551	134	window
unknown	1946	178	window
self	2296	195	window
unknown	2493	65	window
self	3148	57	window
self	3220	229	window
self	3449	81	window
self	3553	91	window
self	3647	169	window
self	3874	400	window
self	4291	90	window
self	4381	246	window
self	4677	542	window
self	5338	134	window

CPU time spent

Calculated using Tracium.

Categories (ms)
parseHTML	335
styleLayout	475
paintCompositeRender	55
scriptParseCompile	18
scriptEvaluation	2096
garbageCollection	32
other	972

Events (ms)
FunctionCall	1900
RunTask	571
ParseHTML	312
Layout	236
UpdateLayoutTree	226
CpuProfiler::StartProfiling	101
v8.run	98
DecodedDataDocumentParser::AppendBytes	97
DocumentLoader::BodyLoadingFinished	73
V8.HandleInterrupts	54
Paint	37
DocumentLoader::CommitNavigation	31
PrePaint	23
Commit	20
ParseAuthorStyleSheet	18
v8.compile	18
Layerize	14
V8.GC_SCAVENGER_SCAVENGE_PARALLEL	14
HTMLDocumentParser::FetchQueuedPreloads	13
PaintImage	11
V8.BytecodeBudgetInterrupt	11

Time spent per request

URL	CPU time (ms)
https://en.m.wikipedia.beta.wmflabs.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva	2103
https://en.m.wikipedia.beta.wmflabs.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionEventsSampleRate%2CkvStore%2CstartUp%7Cext.centralauth.centralautologin%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.echo.centralauth%7Cext.growthExperiments.SuggestedEditSession%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.scribunto.errors%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.urlShortener.toolbar%7Cjquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%7Cjquery.client%2Cspinner%7Cjquery.spinner.styles%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmw.config.values.wbDataBridgeConfig%7Cmw.externalguidance.init%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.indicators%7Cskins.minerva.scripts%7Cwikibase.client.data-bridge.init%7Cwikibase.sidebar.tracking&skin=minerva&version=18eeb	1146
https://en.m.wikipedia.beta.wmflabs.org/wiki/Barack_Obama	14
https://meta.wikimedia.beta.wmflabs.org/w/index.php?title=Special:BannerLoader&campaign=CN+browser+tests&banner=browser_test_b1&uselang=en&debug=false	11

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

Screenshots

afterPageCompleteCheck.jpg

layoutShift.jpg

largestContentfulPaint.jpg

Run 1 summary

https://en.m.wikipedia.beta.wmflabs.org/wiki/Barack_Obama

Summary

Waterfall

Video

Filmstrip

Coach

Coach score

Performance advice (75)

Best practice advice (82)

Privacy advice (94)

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