Run 1 for https://en.m.wikipedia.org/wiki/Main

Summary

Metric	Value
Page metrics
Performance score	73
Total page size	750.2 KB
Requests	45
Timing metrics
TTFB	213 ms
First Paint	533 ms
Fully Loaded	4.587 s
Google Web Vitals
TTFB	213 ms
First Contentful Paint (FCP)	533 ms
Largest Contentful Paint (LCP)	880 ms
Cumulative Layout Shift (CLS)	0.54
Total Blocking Time	2.280 s
Max Potential FID	1.230 s
CPU metrics
CPU long tasks	14
CPU last long task happens at	11.433 s
Visual Metrics
First Visual Change	567 ms
Speed Index	6.958 s
Visual Complete 85%	12.000 s
Visual Complete 99%	14.133 s
Last Visual Change	14.867 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

0.5 sCPU Long Task duration 73 ms

0.6 smwStartup 529 msFirst Contentful Paint 533 msFirst Visual Change 567 ms

0.8 sCPU Long Task duration 126 ms

0.9 sLCP <P> 880 ms

1 sCPU Long Task duration 84 ms

1.1 s

1.2 sCPU Long Task duration 326 ms

1.3 s

1.6 sCPU Long Task duration 218 ms

1.8 sCPU Long Task duration 73 ms

1.9 sDOM Content Loaded Time 1.819 sCPU Long Task duration 75 ms

2 sCPU Long Task duration 142 ms

2.2 sCPU Long Task duration 196 ms

2.5 sCPU Long Task duration 58 ms

2.6 sCPU Long Task duration 144 ms

2.8 smwCentralNoticeBanner 2.708 s

2.9 sPage Load Time 2.875 sCPU Long Task duration 1.230 s

3 s

4.2 sCPU Long Task duration 110 ms

4.6 sFully Loaded 4.587 s

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11 s

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11.5 sCPU Long Task duration 148 ms

11.6 sLayout Shift 0.04063 11.598 s

11.7 sLayout Shift 0.00740 11.623 sLayout Shift 0.01875 11.654 sLayout Shift 0.03611 11.690 s

11.8 sLayout Shift 0.01563 11.714 sLayout Shift 0.03906 11.740 sLayout Shift 0.02395 11.766 sLayout Shift 0.05669 11.790 s

11.9 sLayout Shift 0.03125 11.819 sLayout Shift 0.05781 11.846 sLayout Shift 0.02461 11.869 sLayout Shift 0.04070 11.897 s

12 sLayout Shift 0.03281 11.925 sLayout Shift 0.01318 11.953 sLayout Shift 0.02241 11.977 sVisual Complete 85% 12.000 s

12.1 sLayout Shift 0.01094 12.002 sLayout Shift 0.01660 12.026 sLayout Shift 0.00781 12.052 sLayout Shift 0.01265 12.075 sLayout Shift 0.00554 12.099 s

12.2 sLayout Shift 0.01094 12.124 sLayout Shift 0.00781 12.177 s

12.3 sLayout Shift 0.00625 12.226 sLayout Shift 0.00256 12.277 s

12.4 s

12.5 sVisual Complete 95% 12.467 sHeading 12.467 s

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13 s

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14 s

14.1 s

14.2 sVisual Complete 99% 14.133 s

14.3 s

14.4 s

14.5 s

14.6 s

14.7 s

14.8 s

14.9 sLast Visual Change 14.867 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 78
Performance score 73
Privacy score 88
Best practice score 73

Performance advice (73)

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.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.org/w/load.php...ia.org/w/load.php

Don't scale images in the browser (avoidScalingImages)

The page has 3 images that are scaled more than 100 pixels. It would be better if those images are sent so the browser don't need to scale them.

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.m.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en.svg

https://upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Red-lored_Whistler_0A2...tler_0A2A8896.jpg

https://en.m.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 3.087 s. The total blocking time is 2.314 s and 1 long task before first contentful paint with total time of 73 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

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.org/wiki/Special:CentralAutoLogin/start?type=script&mobile=1&mobile=1

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

https://en.m.wikipedia.org/wiki/Special:CentralAutoLogin/start?mobile=1&mobile=1&type=script

Avoid extra requests by setting cache headers (cacheHeaders)

The page has 23 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 409.2 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/a/ad/Foxborostade_crop_1.pn...ostade_crop_1.png

https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Song_Zhenzhong.jpeg/25...ng_Zhenzhong.jpeg

https://upload.wikimedia.org/wikipedia/commons/thumb/a/af/Hong_Kong_47_arrestees..._47_arrestees.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Alan_Freed_disk_jockey...d_disk_jockey.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Red-lored_Whistler_0A2...tler_0A2A8896.jpg

https://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/62px-Commons-logo.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/MediaWiki-2020-icon.sv...2020-icon.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/7/75/Wikimedia_Community_Lo...nity_Logo.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikibooks-logo.svg/70p...ooks-logo.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/94px...data-logo.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/102p...news-logo.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/70p...uote-logo.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/70...urce-logo.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Wikispecies-logo.svg/7...cies-logo.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Wikiversity_logo_2017....logo_2017.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Wikivoyage-Logo-v3-ico...o-v3-icon.svg.png

https://upload.wikimedia.org/wikipedia/en/thumb/0/06/Wiktionary-logo-v2.svg/70px...y-logo-v2.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Wiktionary-logo.svg/82...nary-logo.svg.png

https://en.wikipedia.org/wiki/Special:CentralAutoLogin/start?type=script&mobile=1&mobile=1

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

https://en.m.wikipedia.org/wiki/Special:CentralAutoLogin/start?mobile=1&mobile=1&type=script

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

https://login.wikimedia.org/wiki/Special:CentralAutoLogin/checkLoggedIn...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.org/w/load.php...ia.org/w/load.php

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

https://en.m.wikipedia.org/w/load.php?lang=en&modules=site.styles&only=styles&skin=minerva

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

Always compress text content (compressAssets)

The page has 1 request that are served uncompressed. You could save a lot of bytes by sending them compressed instead.

Description: In the early days of the Internet there were browsers that didn't support compressing (gzipping) text content. They do now. Make sure you compress HTML, JSON, JavaScript, CSS and SVG. It will save bytes for the user; making the page load faster and use less bandwith.

Offenders:

URL	Transfer size	Content size
https://meta.m.wikimedia.org/w/index.php...a.org/w/index.php	63.3 KB	262.6 KB

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

The total JavaScript transfer size is 360.9 kB and the uncompressed size is 1.4 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.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva	20.2 KB	60.8 KB
https://en.m.wikipedia.org/w/load.php?lang=en&modules=ext.gadget.switcher&skin=minerva&version=1u62d	1.5 KB	1.3 KB
https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php	185.3 KB	780.9 KB
https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php	26.9 KB	129.0 KB
https://meta.m.wikimedia.org/w/index.php...a.org/w/index.php	63.3 KB	262.6 KB
https://login.wikimedia.org/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn	1.2 KB	252 B
https://en.m.wikipedia.org/w/load.php?lang=en&modules=vue&skin=minerva&version=n99vv	54.1 KB	146.3 KB

Make each CSS response small (optimalCssSize)

https://en.m.wikipedia.org/w/load.php?lang=en&modules=ext.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.wikimedia%7Cskins.minerva.mainMenu.icons%7Cskins.minerva.mainPage.styles%7Cskins.minerva.styles&only=styles&skin=minerva size is 17.5 kB (17501) 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.org/w/load.php...ia.org/w/load.php	17.1 KB	133.4 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.m.wikipedia.org/wiki/Main_Page

https://en.m.wikipedia.org/wiki/Special:CentralAutoLogin/start?mobile=1&mobile=1&type=script

Best practice advice (73)

Title	Advice	Score
Cumulative Layout Shift (cumulativeLayoutShift)	You have a poor cumulative layout shift score (0.5421). 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.m.wikiped...ia.org/w/load.php has a header sourcemap that is 1104 characters long.	99
Description: Do not send response headers that are too long.
Offenders: https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php
Avoid unnecessary headers (unnecessaryHeaders)	There are 20 responses that sets both a max-age and expires header. There are 45 responses that sets a server header.	35
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.org/wiki/Main_Page https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva https://en.m.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva https://en.m.wikipedia.org/w/load.php?lang=en&modules=site.styles&only=styles&skin=minerva https://en.m.wikipedia.org/w/load.php?lang=en&modules=site.styles&only=styles&skin=minerva https://upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Foxborostade_crop_1.pn...ostade_crop_1.png https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Song_Zhenzhong.jpeg/25...ng_Zhenzhong.jpeg https://upload.wikimedia.org/wikipedia/commons/thumb/a/af/Hong_Kong_47_arrestees..._47_arrestees.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Alan_Freed_disk_jockey...d_disk_jockey.jpg https://en.m.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en.svg https://en.m.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en.svg https://upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Red-lored_Whistler_0A2...tler_0A2A8896.jpg https://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/62px-Commons-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/MediaWiki-2020-icon.sv...2020-icon.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/7/75/Wikimedia_Community_Lo...nity_Logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikibooks-logo.svg/70p...ooks-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/94px...data-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/102p...news-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/70p...uote-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/70...urce-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Wikispecies-logo.svg/7...cies-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Wikiversity_logo_2017....logo_2017.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Wikivoyage-Logo-v3-ico...o-v3-icon.svg.png https://upload.wikimedia.org/wikipedia/en/thumb/0/06/Wiktionary-logo-v2.svg/70px...y-logo-v2.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Wiktionary-logo.svg/82...nary-logo.svg.png https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php?lang=en&modules=ext.gadget.switcher&skin=minerva&version=1u62d https://en.m.wikipedia.org/w/load.php?lang=en&modules=ext.gadget.switcher&skin=minerva&version=1u62d https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.m.wikipedia.org/w/load.php...ia.org/w/load.php https://en.wikipedia.org/wiki/Special:CentralAutoLogin/start?type=script&mobile=1&mobile=1 https://meta.wikimedia.org/w/index.php...a.org/w/index.php https://en.m.wikipedia.org/wiki/Special:CentralAutoLogin/start?mobile=1&mobile=1&type=script https://meta.m.wikimedia.org/w/index.php...a.org/w/index.php https://login.wikimedia.org/wiki/Special:CentralAutoLogin/checkLoggedIn...gin/checkLoggedIn https://en.m.wikipedia.org/w/load.php?lang=en&modules=vue&skin=minerva&version=n99vv https://en.m.wikipedia.org/w/load.php?lang=en&modules=vue&skin=minerva&version=n99vv https://en.m.wikipedia.org/beacon/impression...beacon/impression https://en.m.wikipedia.org/w/api.php?action=webapp-manifest https://en.m.wikipedia.org/w/api.php?action=webapp-manifest https://en.m.wikipedia.org/static/favicon/wikipedia.ico https://en.m.wikipedia.org/static/favicon/wikipedia.ico https://en.m.wikipedia.org/static/apple-touch/wikipedia.png https://en.m.wikipedia.org/static/apple-touch/wikipedia.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.m.wikipedia.org/wiki/Main_Page
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.org/wiki/Main_Page

Page info

Page info
Title	Wikipedia, the free encyclopedia
Generator	MediaWiki 1.44.0-wmf.3
Width	360
Height	8603
DOM elements	1501
Avg DOM depth	14
Max DOM depth	23
Iframes	0
Script tags	8
Local storage	700.1 KB
Session storage	0 b
Network Information API	4g

Resource Hints
dns-prefetch
https://meta.wikimedia.org/
https://login.wikimedia.org/
preconnect
https://upload.wikimedia.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 9.2.5	100	Web servers
HSTS	100	Security

Visual Metrics

Visual Metrics
First Visual Change	567 ms
Speed Index	6.958 s
Heading	12.467 s
Last Meaningful Paint	12.467 s
Visual Complete 85%	12.000 s
Visual Complete 95%	12.467 s
Visual Complete 99%	14.133 s
Last Visual Change	14.867 s
Visual Readiness	14.300 s

Browser Metrics

Navigation Timing
backEndTime	213 ms
domContentLoadedTime	1.819 s
domInteractiveTime	1.818 s
domainLookupTime	0 ms
frontEndTime	2.652 s
pageDownloadTime	11 ms
pageLoadTime	2.875 s
redirectionTime	0 ms
serverConnectionTime	0 ms
serverResponseTime	122 ms

Google Web Vitals
Time to first byte (TTFB)	213 ms
First Contentful Paint (FCP)	533 ms
Largest Contentful Paint (LCP)	880 ms
Cumulative Layout Shift (CLS)	0.54
Total Blocking Time (TBT)	2.280 s

First Contentful Paint info
Elements that needed recalculate style before FCP	76
Time spent in recalculate style before FCP	37.725 ms

Extra timings
TTFB	213 ms
First Paint	533 ms
Load Event End	2.877 s
Fully loaded	4.587 s

User Timing marks
mwStartup	529 ms
mwCentralNoticeBanner	2.708 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	880 ms
Elements that needed recalculate style before LCP	317
Time spent in recalculate style before LCP	72.525 ms
Load time	0 ms
*Size (widthheight)**	122892
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 > div#mp-upper > div#mp-left > div#mp-tfa > p> div#mw-mf-viewport > div#mw-mf-page-center > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > section#mf-section-0 > div#mp-upper > div#mp-left > div#mp-tfa > p>

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

0.54208 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
0.05781	<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
0.05669	<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
0.04063	<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
0.03906	<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
0.03611	<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
0.03281	<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
0.03125	<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
0.02461	<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
0.02395	<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
0.01660	<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
0.01318	<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
0.01265	<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
0.01094	<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
0.00781	<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
0.00781	<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
0.00740	<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
0.00554	<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
0.00256	<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
1.217 s	1.231 s	36.4 ms	19.4 ms	17 ms
https://en.m.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva
Forced Style And Layout Duration: 528 ms Invoker: IdleRequestCallback Invoker Type: user-callback Source Function Name: doPropagation Window attribution: self Source char position: 4309
Invoker: FrameRequestCallback Invoker Type: user-callback Window attribution: self Source char position: 57952

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
319 ms	61.4 ms	322.6 ms	318.1 ms	4.5 ms
https://en.m.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.centralautologin%7Cext.checkUser.clientHints%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.growthExperiments.SuggestedEditSession%7Cext.urlShortener.toolbar%7Cjquery%2Coojs%2Csite%7Cjquery.client%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmw.externalguidance.init%7Cskins.minerva.mainMenu.styles%7Cskins.minerva.messageBox.styles%7Cskins.minerva.scripts%7Cwikibase.sidebar.tracking&skin=minerva&version=1mn99
Invoker: https://en.m.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.centralautologin%7Cext.checkUser.clientHints%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.growthExperiments.SuggestedEditSession%7Cext.urlShortener.toolbar%7Cjquery%2Coojs%2Csite%7Cjquery.client%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmw.externalguidance.init%7Cskins.minerva.mainMenu.styles%7Cskins.minerva.messageBox.styles%7Cskins.minerva.scripts%7Cwikibase.sidebar.tracking&skin=minerva&version=1mn99 Invoker Type: classic-script Window attribution: self

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
241 ms	225 ms	72 ms	55.3 ms	16.7 ms
https://en.m.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: 4309
https://en.m.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: 3231

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
166 ms	122.1 ms	140.9 ms	128.4 ms	12.5 ms
https://en.m.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: 4309
https://en.m.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.centralautologin%7Cext.checkUser.clientHints%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.growthExperiments.SuggestedEditSession%7Cext.urlShortener.toolbar%7Cjquery%2Coojs%2Csite%7Cjquery.client%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmw.externalguidance.init%7Cskins.minerva.mainMenu.styles%7Cskins.minerva.messageBox.styles%7Cskins.minerva.scripts%7Cwikibase.sidebar.tracking&skin=minerva&version=1mn99
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 214371
https://en.m.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: 3231

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
155 ms	12.2 ms	194.8 ms	192.3 ms	2.5 ms
https://en.m.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: 4309
https://en.m.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva
Forced Style And Layout Duration: 23 ms Invoker: FrameRequestCallback Invoker Type: user-callback Source Function Name: flushCssBuffer Window attribution: self Source char position: 3231

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
102 ms	148.9 ms	3.1 ms	0 ms	3.1 ms
Forced Style And Layout Duration: 137 ms Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 151424

Blocking duration

Work duration

Render duration

PreLayout Duration

Style And Layout Duration

102 ms

148.9 ms

3.1 ms

0 ms

3.1 ms

Forced Style And Layout Duration: 137 ms

Invoker: TimerHandler:setTimeout
Invoker Type: user-callback
Window attribution: self
Source char position: 151424

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
101 ms	147.6 ms	6.4 ms	1.4 ms	5 ms
https://en.m.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.centralautologin%7Cext.checkUser.clientHints%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.growthExperiments.SuggestedEditSession%7Cext.urlShortener.toolbar%7Cjquery%2Coojs%2Csite%7Cjquery.client%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmw.externalguidance.init%7Cskins.minerva.mainMenu.styles%7Cskins.minerva.messageBox.styles%7Cskins.minerva.scripts%7Cwikibase.sidebar.tracking&skin=minerva&version=1mn99
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 214371

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
86 ms	38.9 ms	126.1 ms	0 ms	126.1 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
44 ms	54.1 ms	83.9 ms	71.2 ms	12.7 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
34 ms	105 ms	4 ms	3.5 ms	0.5 ms
No availible script information.

Server timings

name	duration	description
cache	0	hit-front
host	0	cp3067

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	17
Frames	16
JSEventListeners	117
LayoutObjects	2445
MediaKeySessions	0
MediaKeys	0
Nodes	5793
Resources	43
ContextLifecycleStateObservers	20
V8PerContextDatas	2
WorkerGlobalScopes	0
UACSSResources	0
RTCPeerConnections	0
ResourceFetchers	17
AdSubframes	0
DetachedScriptStates	0
ArrayBufferContents	0
LayoutCount	237
RecalcStyleCount	272
LayoutDuration	924
RecalcStyleDuration	855
DevToolsCommandDuration	173
ScriptDuration	1947
V8CompileDuration	68
TaskDuration	6624
TaskOtherDuration	2656
ThreadTime	17
ProcessTime	53
JSHeapUsedSize	6894628
JSHeapTotalSize	9658368
FirstMeaningfulPaint	880

Visual Elements

Name	Display Time	X	Y	Width	Height
LargestImage (160px-Foxborostade_crop_1.png)		25	603	160	122
<img alt="Foxboro Stadium, host venue of MLS Cup 1999" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Foxborostade_crop_1.png/160px-Foxborostade_crop_1.png" decoding="async" width="160" height="122" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Foxborostade_crop_1.png/240px-Foxborostade_crop_1.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Foxborostade_crop_1.png/320px-Foxborostade_crop_1.png 2x" data-file-width="625" data-file-height="477">
Heading	12.467 s	48	434	256	28
<h1 id="Welcome_to_Wikipedia"></h1>
LargestContentfulPaint		25	595	310	800
<p></p>

PageXray

How the page is built.

Summary
HTTP version	HTTP/2.0
Total requests	45
Total domains	6
Total transfer size	750.2 KB
Total content size	1.9 MB
Responses missing compression	8
Number of cookies	4
Third party cookies	0

Requests per response code
200	41
204	1
302	3

Largest assets on the page (by transfer size)

URL	Type	Transfer Size	Content Size
https://en.m.wikiped...ia.org/w/load.php	javascript	185.3 KB	780.9 KB
https://upload.wikim...ostade_crop_1.png	image	160.7 KB	159.8 KB
https://meta.m.wikim...a.org/w/index.php	javascript	63.3 KB	262.6 KB
https://en.m.wikiped...ia.org/w/load.php	javascript	54.1 KB	146.3 KB
https://upload.wikim...tler_0A2A8896.jpg	image	51.1 KB	50.2 KB
https://upload.wikim..._47_arrestees.jpg	image	30.9 KB	30.0 KB
https://en.m.wikiped...ia.org/w/load.php	javascript	26.9 KB	129.0 KB
https://en.m.wikiped...rg/wiki/Main_Page	html	26.1 KB	102.9 KB
https://en.m.wikiped...ia.org/w/load.php	javascript	20.2 KB	60.8 KB
https://upload.wikim...d_disk_jockey.jpg	image	19.6 KB	18.7 KB
https://upload.wikim...ng_Zhenzhong.jpeg	image	19.1 KB	18.3 KB
https://en.m.wikiped...ia.org/w/load.php	css	17.1 KB	133.4 KB
https://upload.wikim...nary-logo.svg.png	image	9.9 KB	9.1 KB
https://upload.wikim...news-logo.svg.png	image	6.7 KB	5.9 KB
https://upload.wikim...cies-logo.svg.png	image	6.1 KB	5.3 KB
https://upload.wikim...2020-icon.svg.png	image	5.2 KB	4.3 KB
https://upload.wikim...urce-logo.svg.png	image	3.9 KB	3.1 KB
https://upload.wikim...nity_Logo.svg.png	image	3.8 KB	2.9 KB
https://upload.wikim...uote-logo.svg.png	image	3.7 KB	2.9 KB
https://upload.wikim...ooks-logo.svg.png	image	3.6 KB	2.8 KB

Requests and sizes per content type

Content	Transfer Size	Content Size	Requests
html	26.1 KB	102.9 KB	1
css	18.4 KB	135.2 KB	2
javascript	352.4 KB	1.3 MB	7
image	337.1 KB	320.8 KB	19
svg	12.5 KB	8.9 KB	10
plain	546 B	0 b	1
json	1.4 KB	263 B	1
favicon	1.7 KB	2.7 KB	1
Total	750.2 KB	1.9 MB	42

Data per domain

Domain	Total download time	Transfer Size	Content Size	Requests
en.m.wikipedia.org	3.283 s	350.6 KB	1.3 MB	23
upload.wikimedia.org	10.504 s	335.1 KB	319.5 KB	18
en.wikipedia.org	97 ms	N/A	0 b	1
meta.wikimedia.org	97 ms	N/A	0 b	1
meta.m.wikimedia.org	268 ms	63.3 KB	262.6 KB	1
login.wikimedia.org	99 ms	1.2 KB	252 B	1

Expires and last modified statistics

type	min	median	max
Expires	0 seconds	0 seconds	1 year
Last modified	4 seconds	21 weeks	7 years

Console log

The page logs the following messages to the console.

Level	Message
WARNING	https://en.m.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva 11:274 "This page is using the deprecated ResourceLoader module \"skins.minerva.mainMenu.styles\".\nRetained for caching reasons. Please use skins.minerva.styles instead."
WARNING	https://en.m.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva 11:274 "This page is using the deprecated ResourceLoader module \"mediawiki.Uri\".\n[1.43] Please use browser native URL."
INFO	https://en.m.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.centralautologin%7Cext.checkUser.clientHints%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.growthExperiments.SuggestedEditSession%7Cext.urlShortener.toolbar%7Cjquery%2Coojs%2Csite%7Cjquery.client%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmw.externalguidance.init%7Cskins.minerva.mainMenu.styles%7Cskins.minerva.messageBox.styles%7Cskins.minerva.scripts%7Cwikibase.sidebar.tracking&skin=minerva&version=1mn99 589:545 "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	0 b	0
image	2.0 KB	1
font	0 b	0
json	1.4 KB	1
favicon	1.7 KB	1
Total	5.1 KB	3

Requests loaded after onContentLoad

Includes requests done after DOM content loaded.

Content	Transfer Size	Requests
html	0 b	0
css	0 b	0
javascript	118.6 KB	3
image	2.0 KB	1
font	0 b	0
plain	546 B	1
json	1.4 KB	1
favicon	1.7 KB	1
Total	124.2 KB	9

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...ia.org/w/load.php	non_blocking
https://meta.m.wikim...a.org/w/index.php	non_blocking
https://en.m.wikiped...ia.org/w/load.php	non_blocking
https://en.m.wikiped...ia.org/w/load.php	non_blocking
https://en.m.wikiped...ia.org/w/load.php	potentially_blocking
https://en.m.wikiped...ia.org/w/load.php	blocking
https://en.m.wikiped...ia.org/w/load.php	non_blocking
https://en.m.wikiped...ia.org/w/load.php	blocking
https://login.wikime...gin/checkLoggedIn	non_blocking
https://en.wikipedia...alAutoLogin/start	non_blocking
https://meta.wikimed...a.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		2280
Max Potential First Input Delay		1230
Long Tasks before First Paint	1	73
Long Tasks before First Contentful Paint	1	73
Long Tasks before Largest Contentful Paint	2	199
Long Tasks after Load Event End	3	1488
Total Long Tasks	14	3003

CPU last long task happened at 11.433 s

Individual Long Tasks

name	startTime	duration	containerType
unknown	415	73	window
unknown	741	126	window
unknown	921	84	window
unknown	1184	326	window
self	1519	218	window
self	1740	73	window
self	1864	75	window
self	1970	142	window
self	2188	196	window
self	2410	58	window
self	2578	144	window
self	2884	1230	window
self	4196	110	window
self	11433	148	window

CPU time spent

Calculated using Tracium.

Categories (ms)
parseHTML	177
styleLayout	1748
paintCompositeRender	634
scriptParseCompile	70
scriptEvaluation	1871
garbageCollection	65
other	1985

Events (ms)
FunctionCall	1618
RunTask	958
Layout	912
UpdateLayoutTree	827
PrePaint	456
Paint	413
Layerize	179
ParseHTML	158
CpuProfiler::StartProfiling	144
HitTest	135
Commit	131
v8.run	98
v8.compile	70
RunMicrotasks	57
UpdateLayer	43
V8.HandleInterrupts	37
PaintImage	36
DocumentLoader::CommitNavigation	21
ParseAuthorStyleSheet	19
HTMLDocumentParser::FetchQueuedPreloads	19
DecodedDataDocumentParser::AppendBytes	18
IntersectionObserverController::computeIntersections	16
V8.BytecodeBudgetInterrupt	13
EventDispatch	10

Time spent per request

URL	CPU time (ms)
https://en.m.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva	2018
https://en.m.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.centralautologin%7Cext.checkUser.clientHints%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.growthExperiments.SuggestedEditSession%7Cext.urlShortener.toolbar%7Cjquery%2Coojs%2Csite%7Cjquery.client%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmw.externalguidance.init%7Cskins.minerva.mainMenu.styles%7Cskins.minerva.messageBox.styles%7Cskins.minerva.scripts%7Cwikibase.sidebar.tracking&skin=minerva&version=1mn99	395
https://meta.wikimedia.org/w/index.php?title=Special:BannerLoader&campaign=C24_WMDE_Mobile_EN_01&banner=B24_WMDE_Mobile_EN_01_ctrl&uselang=en&debug=false	149
https://en.m.wikipedia.org/wiki/Main_Page	14
https://en.m.wikipedia.org/w/load.php?lang=en&modules=ext.centralauth.ForeignApi%7Cext.cite.referencePreviews%7Cext.math.popup%7Cext.popups.main%7Cmediawiki.ForeignApi%7Cmediawiki.ForeignApi.core&skin=minerva&version=ynmr8	11

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

Screenshots

afterPageCompleteCheck.jpg

layoutShift.jpg

largestContentfulPaint.jpg

Run 1 summary

https://en.m.wikipedia.org/wiki/Main_Page

Summary

Waterfall

Video

Filmstrip

Coach

Coach score

Performance advice (73)

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