Run 4 for https://en.wikipedia.beta.wmcloud.org/wiki/Barack

Summary

Metric	Value
Page metrics
Performance score	71
Total page size	1.6 MB
Requests	101
Timing metrics
TTFB	696 ms
First Paint	1.412 s
Fully Loaded	3.549 s
Google Web Vitals
TTFB	696 ms
First Contentful Paint (FCP)	1.412 s
Largest Contentful Paint (LCP)	1.556 s
Cumulative Layout Shift (CLS)	0.11
144 ms
Total Blocking Time	270 ms
Max Potential FID	152 ms
CPU metrics
CPU long tasks	8
CPU last long task happens at	3.125 s
Visual Metrics
First Visual Change	1.400 s
Speed Index	1.712 s
Visual Complete 85%	2.533 s
Visual Complete 99%	3.233 s
Last Visual Change	3.233 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

1.4 smwStartup 1.389 sFirst Visual Change 1.400 s

1.5 sCPU Long Task duration 99 msFirst Contentful Paint 1.412 sLayout Shift 0.00330 1.493 s

1.6 sCPU Long Task duration 113 msLCP <P> 1.556 s

1.7 sCPU Long Task duration 95 ms

1.8 s

1.9 sDOM Content Loaded Time 1.815 s

2 s

2.1 sLayout Shift 0.01443 2.058 s

2.2 sCPU Long Task duration 52 msLayout Shift 0.00000 2.155 sCPU Long Task duration 152 ms

2.4 s

2.5 sCPU Long Task duration 87 msLayout Shift 0.00709 2.474 s

2.6 sCPU Long Task duration 69 msVisual Complete 85% 2.533 s

2.7 sLayout Shift 0.00055 2.658 smwCentralNoticeBanner 2.670 s

2.8 sLayout Shift 0.02000 2.715 sVisual Complete 95% 2.766 sHeading 2.766 s

2.9 s

3 s

3.1 s

3.2 sLayout Shift 0.00055 3.104 sCPU Long Task duration 52 ms

3.3 sLayout Shift 0.06906 3.201 sLast Visual Change 3.233 sVisual Complete 99% 3.233 sLargest Image 3.233 s

Coach

The coach helps you find performance problems on your web page using web performance best practice rules. And gives you advice on privacy and best practices. Tested using Coach-core version 8.1.3.

Coach score

Total score 75
Performance score 71
Privacy score 87
Best practice score 66

Performance advice (71)

Title

Advice

Score

Avoid slowing down the critical rendering path (avoidRenderBlocking)

The page has 2 blocking requests and 0 in body parser blocking (0 JavaScript and 2 CSS). There are 1 potentially render blocking requests. You need to verify if it is render blocking: https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022

Description: The critical rendering path is what the browser needs to do to start rendering the page. Every file requested inside of the head element will postpone the rendering of the page, because the browser need to do the request. Avoid loading JavaScript synchronously inside of the head (you should not need JavaScript to render the page), request files from the same domain as the main document (to avoid DNS lookups) and inline CSS for really fast rendering and a short rendering path.

Offenders:

https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php

Don't scale images in the browser (avoidScalingImages)

The page has 5 images that are scaled more than 100 pixels. It would be better if those images are sent so the browser don't need to scale them.

Description: It's easy to scale images in the browser and make sure they look good in different devices, however that is bad for performance! Scaling images in the browser takes extra CPU time and will hurt performance on mobile. And the user will download extra kilobytes (sometimes megabytes) of data that could be avoided. Don't do that, make sure you create multiple version of the same image server-side and serve the appropriate one.

Offenders:

https://en.wikipedia.beta.wmcloud.org/static/images/project-logos/wikimedia-cloud-services.svg

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

https://upload.wikimedia.org/wikipedia/commons/thumb/5/50/2004_Illinois_Senate_r...e_results.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/2/2b/58th_Presidential_Inau...-D-BP749-1327.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/9/9f/Job_Growth_by_U.S._Pre...resident_-_v1.png

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 8 CPU long tasks with the total of 719 ms. The total blocking time is 270 ms and 1 long task before first contentful paint with total time of 99 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 2 redirects. 1 of the redirects are from the base domain, please fix them! 1 request are from other domains, it could be 3rd-party assets doing unnecessary redirects. :(

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.wmcloud.org/wiki/Special:CentralAutoLogin/start...alAutoLogin/start

https://auth.wikimedia.beta.wmcloud.org/loginwiki/wiki/Special:CentralAutoLogin/...gin/checkLoggedIn

Avoid extra requests by setting cache headers (cacheHeaders)

The page has 75 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 971 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/e/e7/Cscr-featured.svg/20px...-featured.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Padlock-silver.svg/20p...ck-silver.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/4/47/Sound-icon.svg/20px-Sound-icon.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/f/f9/Obama_portrait_crop.jp...portrait_crop.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/4/47/Sound-icon.svg/60px-Sound-icon.svg.png

https://upload.wikimedia.beta.wmcloud.org/wikipedia/commons/thumb/7/73/Blue_penc...ue_pencil.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/8/89/Symbol_book_class2.svg...ok_class2.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/4/48/Folder_Hexagonal_Icon....onal_Icon.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Portal-puzzle.svg/20px...al-puzzle.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Seal_of_the_President_...ed_States.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Yellow_flag_waving.svg...ag_waving.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Seal_of_the_United_Sta...es_Senate.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/40px-Commons-logo.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/40px...news-logo.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/40p...uote-logo.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/40...urce-logo.svg.png

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

https://upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Barack_Obama_and_Bill_..._Bill_Clinton.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/2/26/Obama_family_portrait_...he_Green_Room.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Seal_of_the_President_...ed_States.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/0/01/A_coloured_voting_box....oting_box.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/Loudspeaker.svg/20px-Loudspeaker.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/2/22/BlackhawksWhiteHouse20...hiteHouse2010.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/c/ca/Barack_Obama_playing_b...secretaries_2.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/7/77/DIG13623-230.jpg/250px-DIG13623-230.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/3/3d/Obamas_at_church_on_In...tion_Day_2013.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Nuvola_apps_kaboodle.s..._kaboodle.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Obamamiltondavis1.jpg/...amiltondavis1.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/5/50/2004_Illinois_Senate_r...e_results.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/BarackObamaportrait.jp...Obamaportrait.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/Lugar-Obama.jpg/250px-Lugar-Obama.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Barack_Obama_Iraq_2006...ama_Iraq_2006.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Flickr_Obama_Springfie...pringfield_01.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/a/a2/President_George_W._Bu...n_Oval_Office.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/2/24/ElectoralCollege2008.s...llege2008.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/3/33/P112912PS-0444_-_Presi...Office_-_crop.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/4/44/ElectoralCollege2012.s...llege2012.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/US_President_Barack_Ob...e_-_2009Jan20.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Barack_Obama_addresses...ss_2009-02-24.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/6/63/Obama_cabinet_meeting_...eting_2009-11.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/8/86/White_House_rainbow_fo...-sex_marriage.jpg

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

https://upload.wikimedia.org/wikipedia/commons/thumb/f/fc/U.S._Total_Deficits_vs...ses_2001-2010.png

https://upload.wikimedia.org/wikipedia/commons/thumb/2/25/US_Employment_Statisti...tatistics.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/6/63/Obama-venice-la.jpg/25...ama-venice-la.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Obama_signs_health_car...care-20100323.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/PPACA_Premium_Chart.jp...Premium_Chart.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Percentage_of_Individu...%2C_1963-2015.png

https://upload.wikimedia.org/wikipedia/commons/thumb/4/4b/Barack_Obama_visiting_...rora_shooting.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/4/42/Barack_Obama_at_Cairo_...rsity_cropped.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Barack_Obama_foreign_t...ign_trips.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/7/76/Barack_Obama_and_Matte...ber_2016%2C_1.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/b/be/David_Cameron_and_Bara...it_in_Toronto.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Barack_Obama_welcomes_...e_Oval_Office.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/f/f7/Vladimir_Putin_and_Bar...5-09-29%29_04.jpg

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

https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/20...urce-logo.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Obama_and_Biden_await_..._on_bin_Laden.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/Barack_Obama_talks_wit...8637772147%29.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Barack_Obama_meets_wit..._%28crop_2%29.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Official_portrait_of_B..._Barack_Obama.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/c/c0/Gallup_Poll-Approval_R...ack_Obama.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/3/3f/G8_leaders_watching_fo...hing_football.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/2/2b/58th_Presidential_Inau...-D-BP749-1327.jpg

https://upload.wikimedia.org/wikipedia/commons/thumb/9/9f/Job_Growth_by_U.S._Pre...resident_-_v1.png

https://upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Obama.svg/40px-Obama.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Great_Seal_of_the_Unit...bverse%29.svg.png

https://upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Office-book.svg/40px-Office-book.svg.png

https://upload.wikimedia.org/wikipedia/commons/4/4d/Icon_pdf_file.png

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

https://meta.wikimedia.beta.wmcloud.org/w/index.php...d.org/w/index.php

https://auth.wikimedia.beta.wmcloud.org/loginwiki/wiki/Special:CentralAutoLogin/...gin/checkLoggedIn

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

Long cache headers is good (cacheHeadersLong)

The page has 3 requests that have a shorter cache time than 30 days (but still a cache time).

Description: Setting a cache header is good. Setting a long cache header (at least 30 days) is even better beacause then it will stay long in the browser cache. But what do you do if that asset change? Rename it and the browser will pick up the new version.

Offenders:

https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php

Total image size shouldn't be too big (imageSize)

The page total image size is 901.8 kB. It's really big. Is the page using the right format for the images? Can they be lazy loaded? Are they compressed as good as they can be? Make them smaller by using https://imageoptim.com/.

Description: Avoid having too many large images on the page. The images will not affect the first paint of the page, but it will eat bandwidth for the user.

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

The total JavaScript transfer size is 499.1 kB and the uncompressed size is 2.1 MB. This is totally crazy! There is really room for improvement here.

Description: A lot of JavaScript often means you are downloading more than you need. How complex is the page and what can the user do on the page? Do you use multiple JavaScript frameworks?

Offenders:

URL	Transfer size	Content size
https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php	20.2 KB	60.4 KB
https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php	17.2 KB	58.7 KB
https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php	295.6 KB	1.3 MB
https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php	24.6 KB	116.7 KB
https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php	2.7 KB	14.8 KB
https://meta.wikimedia.beta.wmcloud.org/w/index.php...d.org/w/index.php	1.5 KB	497 B
https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php	124.3 KB	496.6 KB
https://login.wikimedia.beta.wmcloud.org/wiki/Special:CentralAutoLogin/checkLogg...gin/checkLoggedIn	1.3 KB	254 B

Make each CSS response small (optimalCssSize)

https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=ext.cite.styles%7Cext.dismissableSiteNotice.styles%7Cext.tmh.player.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediamessages.styles%7Cmediawiki.interface.helpers.linker.styles%7Cmediawiki.interface.helpers.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.data-bridge.externalModifiers%7Cwikibase.client.init&only=styles&skin=vector-2022 size is 25.4 kB (25377) and that is bigger than the limit of 14.5 kB. Try to make the CSS files fit into 14.5 KB.

Description: Make CSS responses small to fit into the magic number TCP window size of 14.5 KB. The browser can then download the CSS faster and that will make the page start rendering earlier.

Offenders:

URL	Transfer size	Content size
https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php	24.8 KB	188.1 KB

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

The page has 4 requests with private headers. The main page has a private header. It could be right in some cases where the user can be logged in and served specific content. But if your asset is static it should never be private. Make sure that the assets really should be private and only used by one user. Otherwise, make it cacheable for everyone.

Description: If you set private headers on content, that means that the content are specific for that user. Static content should be able to be cached and used by everyone. Avoid setting the cache header to private.

Offenders:

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

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

https://meta.wikimedia.beta.wmcloud.org/w/index.php...d.org/w/index.php

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

Best practice advice (66)

Title	Advice	Score
Cumulative Layout Shift (cumulativeLayoutShift)	You have a cumulative layout shift score (0.1150) that needs improvements. It is in the Google Web Vitals needs improvement range, shift higher than 0.1. You should manually check the filmstrip or video and check if it will affect the user.	50
Description: Cumulative Layout Shift measures the sum total of all individual layout shift scores for unexpected layout shift that occur. The metric is measuring visual stability by quantify how often users experience unexpected layout shifts. It is one of Google Web Vitals.
Meta description (metaDescription)	The page is missing a meta description.	0
Description: Use a page description to make the page more relevant to search engines.
Do not send too long headers (longHeaders)	https://en.wikipedia...wiki/Barack_Obama has a header content-security-policy that is 3621 characters long. https://en.wikipedia...ud.org/w/load.php has a header sourcemap that is 1512 characters long.	98
Description: Do not send response headers that are too long.
Offenders: https://en.wikipedia.beta.wmcloud.org/wiki/Barack_Obama https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php
Avoid too many third party requests (thirdParty)	The page do more requests to third party domains (69 requests and 965.3 kB) then first party (32 requests and 706.8 kB). The page transfer more bytes from third party domains (965.3 kB) then first party (706.8 kB). The regex .wmcloud. was used to calculate first/third party requests.	0
Description: Do not load most of your content from third party URLs.
Avoid unnecessary headers (unnecessaryHeaders)	There are 22 responses that sets both a max-age and expires header. There are 101 responses that sets a server header.	0
Description: Do not send headers that you don't need. We look for p3p, cache-control and max-age, pragma, server and x-frame-options headers. Have a look at Andrew Betts - Headers for Hackers talk as a guide https://www.youtube.com/watch?v=k92ZbrY815c or read https://www.fastly.com/blog/headers-we-dont-want.
Offenders: https://en.wikipedia.beta.wmcloud.org/wiki/Barack_Obama https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/static/images/project-logos/wikimedia-cloud-services.svg https://en.wikipedia.beta.wmcloud.org/static/images/project-logos/wikimedia-cloud-services.svg https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Cscr-featured.svg/20px...-featured.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Padlock-silver.svg/20p...ck-silver.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/4/47/Sound-icon.svg/20px-Sound-icon.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/f/f9/Obama_portrait_crop.jp...portrait_crop.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/4/47/Sound-icon.svg/60px-Sound-icon.svg.png https://upload.wikimedia.beta.wmcloud.org/wikipedia/commons/thumb/7/73/Blue_penc...ue_pencil.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/8/89/Symbol_book_class2.svg...ok_class2.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/4/48/Folder_Hexagonal_Icon....onal_Icon.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Portal-puzzle.svg/20px...al-puzzle.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Seal_of_the_President_...ed_States.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Yellow_flag_waving.svg...ag_waving.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Seal_of_the_United_Sta...es_Senate.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/40px-Commons-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/40px...news-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/40p...uote-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/40...urce-logo.svg.png https://upload.wikimedia.beta.wmcloud.org/wikipedia/commons/thumb/f/ff/Wikidata-...data-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Barack_Obama_and_Bill_..._Bill_Clinton.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/2/26/Obama_family_portrait_...he_Green_Room.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Seal_of_the_President_...ed_States.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/0/01/A_coloured_voting_box....oting_box.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/Loudspeaker.svg/20px-Loudspeaker.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/2/22/BlackhawksWhiteHouse20...hiteHouse2010.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/c/ca/Barack_Obama_playing_b...secretaries_2.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/7/77/DIG13623-230.jpg/250px-DIG13623-230.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/3/3d/Obamas_at_church_on_In...tion_Day_2013.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Nuvola_apps_kaboodle.s..._kaboodle.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Obamamiltondavis1.jpg/...amiltondavis1.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/5/50/2004_Illinois_Senate_r...e_results.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/BarackObamaportrait.jp...Obamaportrait.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/Lugar-Obama.jpg/250px-Lugar-Obama.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Barack_Obama_Iraq_2006...ama_Iraq_2006.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Flickr_Obama_Springfie...pringfield_01.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/a/a2/President_George_W._Bu...n_Oval_Office.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/2/24/ElectoralCollege2008.s...llege2008.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/3/33/P112912PS-0444_-_Presi...Office_-_crop.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/4/44/ElectoralCollege2012.s...llege2012.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/US_President_Barack_Ob...e_-_2009Jan20.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Barack_Obama_addresses...ss_2009-02-24.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/6/63/Obama_cabinet_meeting_...eting_2009-11.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/8/86/White_House_rainbow_fo...-sex_marriage.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/a/a5/20090124_WeeklyAddress...lyAddress.ogv.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/f/fc/U.S._Total_Deficits_vs...ses_2001-2010.png https://upload.wikimedia.org/wikipedia/commons/thumb/2/25/US_Employment_Statisti...tatistics.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/6/63/Obama-venice-la.jpg/25...ama-venice-la.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Obama_signs_health_car...care-20100323.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/PPACA_Premium_Chart.jp...Premium_Chart.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Percentage_of_Individu...%2C_1963-2015.png https://upload.wikimedia.org/wikipedia/commons/thumb/4/4b/Barack_Obama_visiting_...rora_shooting.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/4/42/Barack_Obama_at_Cairo_...rsity_cropped.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Barack_Obama_foreign_t...ign_trips.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/7/76/Barack_Obama_and_Matte...ber_2016%2C_1.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/b/be/David_Cameron_and_Bara...it_in_Toronto.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Barack_Obama_welcomes_...e_Oval_Office.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/f/f7/Vladimir_Putin_and_Bar...5-09-29%29_04.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/President_Obama_on_Dea...bin_Laden.ogv.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/20...urce-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Obama_and_Biden_await_..._on_bin_Laden.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/Barack_Obama_talks_wit...8637772147%29.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Barack_Obama_meets_wit..._%28crop_2%29.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Official_portrait_of_B..._Barack_Obama.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/c/c0/Gallup_Poll-Approval_R...ack_Obama.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/3/3f/G8_leaders_watching_fo...hing_football.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/2/2b/58th_Presidential_Inau...-D-BP749-1327.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/9/9f/Job_Growth_by_U.S._Pre...resident_-_v1.png https://upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Obama.svg/40px-Obama.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Great_Seal_of_the_Unit...bverse%29.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Office-book.svg/40px-Office-book.svg.png https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/skins/Vector/resources/skins.vector.styl...n-progressive.svg https://en.wikipedia.beta.wmcloud.org/w/skins/Vector/resources/skins.vector.styl...r-progressive.svg https://en.wikipedia.beta.wmcloud.org/w/resources/src/mediawiki.skinning/images/...nify-clip-ltr.svg https://upload.wikimedia.org/wikipedia/commons/4/4d/Icon_pdf_file.png https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/wiki/Special:CentralAutoLogin/start...alAutoLogin/start https://meta.wikimedia.beta.wmcloud.org/w/index.php...d.org/w/index.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://auth.wikimedia.beta.wmcloud.org/loginwiki/wiki/Special:CentralAutoLogin/...gin/checkLoggedIn https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php https://login.wikimedia.beta.wmcloud.org/wiki/Special:CentralAutoLogin/checkLogg...gin/checkLoggedIn https://en.wikipedia.beta.wmcloud.org/static/favicon/wikipedia-purple.png https://en.wikipedia.beta.wmcloud.org/static/favicon/wikipedia-purple.png

Privacy advice (87)

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.wikipedia.beta.wmcloud.org/wiki/Barack_Obama
Avoid third party cookies that is used to track the user. (thirdPartyCookies)	The page sets 69 third party cookies.	0
Description: Third party cookies are used to track the user. They are automatically blocked in Safari and Firefox.
Offenders: upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org upload.wikimedia.org

Page info

Page info
Title	Barack Obama - Wikipedia, the free encyclopedia
Generator	MediaWiki 1.45.0-alpha
Width	1904
Height	52804
DOM elements	13697
Avg DOM depth	16
Max DOM depth	29
Iframes	0
Script tags	6
Local storage	1.2 MB
Session storage	0 b
Network Information API	3g

Resource Hints
dns-prefetch
https://meta.wikimedia.beta.wmcloud.org/
https://en.wikipedia.beta.wmcloud.org/wiki/auth.wikimedia.beta.wmcloud.org
preconnect
https://upload.wikimedia.beta.wmcloud.org/

Technologies used to build the page.

Data collected using Wappalyzer version 6.10.54. With updated code from Webappanalyzer 2024-12-27. Use --browsertime.firefox.includeResponseBodies htmlor --browsertime.chrome.includeResponseBodies htmlto help Wappalyzer find more information about technologies used.

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

Visual Metrics

Visual Metrics
First Visual Change	1.400 s
Speed Index	1.712 s
Largest Image	3.233 s
Heading	2.766 s
LargestContentfulPaint	3.233 s
Last Meaningful Paint	3.233 s
Largest Contentful Paint	3.233 s
Visual Complete 85%	2.533 s
Visual Complete 95%	2.766 s
Visual Complete 99%	3.233 s
Last Visual Change	3.233 s
Visual Readiness	1.833 s

Browser Metrics

Navigation Timing
backEndTime	696 ms
domContentLoadedTime	1.815 s
domInteractiveTime	1.815 s
domainLookupTime	108 ms
frontEndTime	2.035 s
pageDownloadTime	621 ms
pageLoadTime	3.352 s
redirectionTime	0 ms
serverConnectionTime	387 ms
serverResponseTime	818 ms

Google Web Vitals
Time to first byte (TTFB)	696 ms
First Contentful Paint (FCP)	1.412 s
Largest Contentful Paint (LCP)	1.556 s
Cumulative Layout Shift (CLS)	0.11
Interaction to next paint (INP)	144 ms
Total Blocking Time (TBT)	270 ms

First Contentful Paint info
Elements that needed recalculate style before FCP	2878
Time spent in recalculate style before FCP	47.533 ms

Extra timings
TTFB	696 ms
First Paint	1.412 s
Load Event End	3.352 s
Fully loaded	3.549 s

User Timing marks
mwStartup	1.389 s
mwCentralNoticeBanner	2.670 s

Largest Contentful Paint

When in time the page main content is rendered (collected using the Largest Contentful Paint API). Read more about Largest Contentful Paint.

Element type	P
Element/tag	<p></p>
Render time	1.556 s
Element render delay	860 ms
TTFB	696 ms
Resource delay	0 ms
Resource load duration	0 ms
Elements that needed recalculate style before LCP	5919
Time spent in recalculate style before LCP	103.439 ms
Load time	0 ms
*Size (widthheight)**	237744
DOM path
div:eq(1) > div > div:eq(2) > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > p:eq(3)> div:eq(1) > div > div:eq(2) > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > p:eq(3)>

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

0.11498 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
0.06906	<div data-v-app=""></div>,<table class="infobox vcard" style="width:22em"></table>
body > div:eq(1) > div > div:eq(2) > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > div:eq(1),body > div:eq(1) > div > div:eq(2) > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > table:eq(0)
0.02000	<div class="mw-dismissable-notice"></div>,<div class="vector-column-start"></div>,<div class="mw-content-container"></div>
body > div:eq(1) > div > div:eq(0) > div#siteNotice > div:eq(1),body > div:eq(1) > div > div:eq(1),body > div:eq(1) > div > div:eq(2)
0.01443	<div class="vector-column-start"></div>,<div class="mw-content-container"></div>
body > div:eq(1) > div > div:eq(1),body > div:eq(1) > div > div:eq(2)
0.00709	<table class="infobox vcard" style="width:22em"></table>
body > div:eq(1) > div > div:eq(2) > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > table:eq(0)
0.00330	<header class="vector-header mw-header no-font-mode-scale"></header>,<div class="mw-page-container"></div>
body > div:eq(0) > header,body > div:eq(1)
0.00055	<label class="cdx-label cdx-radio__label" for="skin-client-pref-vector-feature-custom-font-size-value-1"></label>,<label class="cdx-label cdx-radio__label" for="skin-client-pref-vector-feature-custom-font-size-value-2"></label>,<div class="mw-portlet mw-portlet-skin-client-prefs-skin-theme vector-menu" id="skin-client-prefs-skin-theme"></div>,<div class="mw-portlet mw-portlet-skin-client-prefs-vector-feature-limited-width vector-menu" id="skin-client-prefs-vector-feature-limited-width"></div>,<::before></::before>
body > div:eq(1) > div > div:eq(2) > main#content > div:eq(1) > div > nav:eq(1) > div#vector-appearance-pinned-container > div#vector-appearance > div#skin-client-prefs-vector-feature-custom-font-size > div:eq(1) > ul > li > div > form > div:eq(1) > label,body > div:eq(1) > div > div:eq(2) > main#content > div:eq(1) > div > nav:eq(1) > div#vector-appearance-pinned-container > div#vector-appearance > div#skin-client-prefs-vector-feature-custom-font-size > div:eq(1) > ul > li > div > form > div:eq(2) > label,body > div:eq(1) > div > div:eq(2) > main#content > div:eq(1) > div > nav:eq(1) > div#vector-appearance-pinned-container > div#vector-appearance > div#skin-client-prefs-skin-theme,body > div:eq(1) > div > div:eq(2) > main#content > div:eq(1) > div > nav:eq(1) > div#vector-appearance-pinned-container > div#vector-appearance > div#skin-client-prefs-vector-feature-limited-width,body > div:eq(1) > div > div:eq(2) > main#content > div:eq(1) > div > nav:eq(1) > div#vector-appearance-pinned-container > div#vector-appearance > div#skin-client-prefs-skin-theme > div:eq(1) > ul > li > div > form > div:eq(2) > span > ::before
0.00055	<label class="cdx-label cdx-radio__label" for="skin-client-pref-vector-feature-custom-font-size-value-1"></label>,<label class="cdx-label cdx-radio__label" for="skin-client-pref-vector-feature-custom-font-size-value-2"></label>,<div class="mw-portlet mw-portlet-skin-client-prefs-skin-theme vector-menu" id="skin-client-prefs-skin-theme"></div>,<div class="mw-portlet mw-portlet-skin-client-prefs-vector-feature-limited-width vector-menu" id="skin-client-prefs-vector-feature-limited-width"></div>,<::before></::before>
body > div:eq(1) > div > div:eq(2) > main#content > div:eq(1) > div > nav:eq(1) > div#vector-appearance-pinned-container > div#vector-appearance > div#skin-client-prefs-vector-feature-custom-font-size > div:eq(1) > ul > li > div > form > div:eq(1) > label,body > div:eq(1) > div > div:eq(2) > main#content > div:eq(1) > div > nav:eq(1) > div#vector-appearance-pinned-container > div#vector-appearance > div#skin-client-prefs-vector-feature-custom-font-size > div:eq(1) > ul > li > div > form > div:eq(2) > label,body > div:eq(1) > div > div:eq(2) > main#content > div:eq(1) > div > nav:eq(1) > div#vector-appearance-pinned-container > div#vector-appearance > div#skin-client-prefs-skin-theme,body > div:eq(1) > div > div:eq(2) > main#content > div:eq(1) > div > nav:eq(1) > div#vector-appearance-pinned-container > div#vector-appearance > div#skin-client-prefs-vector-feature-limited-width,body > div:eq(1) > div > div:eq(2) > main#content > div:eq(1) > div > nav:eq(1) > div#vector-appearance-pinned-container > div#vector-appearance > div#skin-client-prefs-skin-theme > div:eq(1) > ul > li > div > form > div:eq(2) > span > ::before
0.00000	<span class="vector-icon mw-ui-icon-wikimedia-expand"></span>,<span class="vector-icon mw-ui-icon-wikimedia-expand"></span>,<span class="vector-icon mw-ui-icon-wikimedia-expand"></span>,<span class="vector-icon mw-ui-icon-wikimedia-expand"></span>,<span class="vector-icon mw-ui-icon-wikimedia-expand"></span>
body > div:eq(1) > div > div:eq(1) > div:eq(1) > nav#mw-panel-toc > div#vector-toc-pinned-container > div#vector-toc > ul#mw-panel-toc-list > li#toc-Early_life_and_career > button > span:eq(0),body > div:eq(1) > div > div:eq(1) > div:eq(1) > nav#mw-panel-toc > div#vector-toc-pinned-container > div#vector-toc > ul#mw-panel-toc-list > li#toc-Presidential_campaigns > button > span:eq(0),body > div:eq(1) > div > div:eq(1) > div:eq(1) > nav#mw-panel-toc > div#vector-toc-pinned-container > div#vector-toc > ul#mw-panel-toc-list > li#toc-Presidency_(2009Ã¢â‚¬â€œ2017) > button > span:eq(0),body > div:eq(1) > div > div:eq(1) > div:eq(1) > nav#mw-panel-toc > div#vector-toc-pinned-container > div#vector-toc > ul#mw-panel-toc-list > li#toc-Post-presidency_(2017Ã¢â‚¬â€œpresent) > button > span:eq(0),body > div:eq(1) > div > div:eq(1) > div:eq(1) > nav#mw-panel-toc > div#vector-toc-pinned-container > div#vector-toc > ul#mw-panel-toc-list > li#toc-See_also > button > span:eq(0)

The elements that have shifted place is highlighted in the image (that have a higher value than 0.01). If the element shifted outside of the viewport, you will not see it there. It can be hard to understand what content that has shifted, if that's the case, checkout the video or the filmstrip of the run.

Interaction to Next Paint

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

The measured latency was 144 ms.

Event type	pointerover
Element type	P
Element class name
Event target	#mw-content-text>div.mw-content-ltr.mw-parser-output>p
Load state when the event happened	loading

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
131.9 ms	173.1 ms	29.2 ms	29 ms	0.2 ms
https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionEventsSampleRate%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%2CxLab%7Cext.echo.centralauth%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.errors%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctoc%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Ccodex%7Cmw.config.values.wbDataBridgeConfig%7Cmw.cx.SiteMapper%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.indicators%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.data-bridge.init%7Cwikibase.client.vector-2022&skin=vector-2022&version=h4cs7
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 327491
https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionEventsSampleRate%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%2CxLab%7Cext.echo.centralauth%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.errors%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctoc%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Ccodex%7Cmw.config.values.wbDataBridgeConfig%7Cmw.cx.SiteMapper%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.indicators%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.data-bridge.init%7Cwikibase.client.vector-2022&skin=vector-2022&version=h4cs7
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 327491

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
66.2 ms	15.9 ms	106.2 ms	106.1 ms	0.1 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
49.8 ms	23 ms	89.8 ms	89.6 ms	0.2 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
47.8 ms	17.8 ms	87.7 ms	87.5 ms	0.2 ms
https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022
Invoker: https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022 Invoker Type: classic-script Window attribution: self

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
45 ms	48.7 ms	80.8 ms	68.5 ms	12.3 ms
https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionEventsSampleRate%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%2CxLab%7Cext.echo.centralauth%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.errors%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctoc%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Ccodex%7Cmw.config.values.wbDataBridgeConfig%7Cmw.cx.SiteMapper%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.indicators%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.data-bridge.init%7Cwikibase.client.vector-2022&skin=vector-2022&version=h4cs7
Forced Style And Layout Duration: 11 ms Invoker: IntersectionObserverCallback Invoker Type: user-callback Window attribution: self Source char position: 1232937
https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022
Invoker: IdleRequestCallback Invoker Type: user-callback Source Function Name: doPropagation Window attribution: self Source char position: 4314
https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022
Invoker: FrameRequestCallback Invoker Type: user-callback Source Function Name: flushCssBuffer Window attribution: self Source char position: 3240

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
27.4 ms	41.3 ms	42 ms	34.8 ms	7.2 ms
https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022
Invoker: IdleRequestCallback Invoker Type: user-callback Source Function Name: doPropagation Window attribution: self Source char position: 4314
https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022
Invoker: FrameRequestCallback Invoker Type: user-callback Source Function Name: flushCssBuffer Window attribution: self Source char position: 3240

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
25.9 ms	52.9 ms	23.9 ms	0 ms	23.9 ms
https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionEventsSampleRate%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%2CxLab%7Cext.echo.centralauth%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.errors%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctoc%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Ccodex%7Cmw.config.values.wbDataBridgeConfig%7Cmw.cx.SiteMapper%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.indicators%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.data-bridge.init%7Cwikibase.client.vector-2022&skin=vector-2022&version=h4cs7
Forced Style And Layout Duration: 3 ms Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 327491

Blocking duration

Work duration

Render duration

PreLayout Duration

Style And Layout Duration

25.9 ms

52.9 ms

23.9 ms

0 ms

23.9 ms

https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionEventsSampleRate%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%2CxLab%7Cext.echo.centralauth%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.errors%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctoc%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Ccodex%7Cmw.config.values.wbDataBridgeConfig%7Cmw.cx.SiteMapper%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.indicators%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.data-bridge.init%7Cwikibase.client.vector-2022&skin=vector-2022&version=h4cs7

Forced Style And Layout Duration: 3 ms

Invoker: TimerHandler:setTimeout
Invoker Type: user-callback
Window attribution: self
Source char position: 327491

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
18.7 ms	9.5 ms	65.6 ms	65.6 ms	0 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
14.3 ms	20.7 ms	48.9 ms	46.4 ms	2.5 ms
https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022
Invoker: IdleRequestCallback Invoker Type: user-callback Source Function Name: doPropagation Window attribution: self Source char position: 4314
https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022
Forced Style And Layout Duration: 16 ms Invoker: FrameRequestCallback Invoker Type: user-callback Source Function Name: flushCssBuffer Window attribution: self Source char position: 3240

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
0 ms	668.7 ms	15 ms	0 ms	15 ms
No availible script information.

Server timings

name	duration	description
cache	0	hit-remote
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	30
Frames	29
JSEventListeners	1376
LayoutObjects	18528
MediaKeySessions	0
MediaKeys	0
Nodes	29028
Resources	114
ContextLifecycleStateObservers	50
V8PerContextDatas	1
WorkerGlobalScopes	0
UACSSResources	9
RTCPeerConnections	0
ResourceFetchers	30
AdSubframes	0
DetachedScriptStates	0
ArrayBufferContents	1
LayoutCount	24
RecalcStyleCount	51
LayoutDuration	232
RecalcStyleDuration	372
DevToolsCommandDuration	91
ScriptDuration	418
V8CompileDuration	4
TaskDuration	1638
TaskOtherDuration	522
ThreadTime	2
ProcessTime	4
JSHeapUsedSize	12523692
JSHeapTotalSize	15876096
FirstMeaningfulPaint	1553

Visual Elements

Name	Display Time	X	Y	Width	Height
LargestImage (250px-President_Barack_Obama.jpg)	3.233 s	1146	656	250	312
<img alt="Obama standing with his arms folded and smiling" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/President_Barack_Obama.jpg/250px-President_Barack_Obama.jpg" decoding="async" width="250" height="312" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/President_Barack_Obama.jpg/500px-President_Barack_Obama.jpg 1.5x" data-file-width="2687" data-file-height="3356">
Heading	2.766 s	478	184	812	40
<h1 id="firstHeading" class="firstHeading mw-first-heading"></h1>
LargestContentfulPaint	3.233 s	478	514	948	390
<p></p>

PageXray

How the page is built.

Summary
HTTP version	HTTP/2.0
Total requests	101
Total domains	6
Total transfer size	1.6 MB
Total content size	4.0 MB
Responses missing compression	10
Number of cookies	75
Third party cookies	69

Requests per response code
200	99
302	2

Largest assets on the page (by transfer size)

URL	Type	Transfer Size	Content Size
https://en.wikipedia...ud.org/w/load.php	javascript	295.6 KB	1.3 MB
https://en.wikipedia...wiki/Barack_Obama	html	151.7 KB	1006.5 KB
https://en.wikipedia...ud.org/w/load.php	javascript	124.3 KB	496.6 KB
https://upload.wikim...rsity_cropped.jpg	image	37.5 KB	36.5 KB
https://upload.wikim...secretaries_2.jpg	image	34.4 KB	33.3 KB
https://upload.wikim...e_results.svg.png	image	33.5 KB	32.4 KB
https://upload.wikim...ign_trips.svg.png	image	31.6 KB	30.6 KB
https://upload.wikim...resident_-_v1.png	image	29.7 KB	28.6 KB
https://upload.wikim..._Barack_Obama.jpg	image	26.8 KB	25.7 KB
https://upload.wikim...-D-BP749-1327.jpg	image	25.5 KB	24.4 KB
https://en.wikipedia...ud.org/w/load.php	css	24.8 KB	188.1 KB
https://en.wikipedia...ud.org/w/load.php	javascript	24.6 KB	116.7 KB
https://upload.wikim...tatistics.svg.png	image	24.6 KB	23.5 KB
https://upload.wikim...n_Oval_Office.jpg	image	23.8 KB	22.8 KB
https://upload.wikim...es_Senate.svg.png	image	23.2 KB	22.1 KB
https://upload.wikim...he_Green_Room.jpg	image	22.7 KB	21.7 KB
https://upload.wikim..._Barack_Obama.jpg	image	22.5 KB	21.5 KB
https://upload.wikim...llege2012.svg.png	image	22.2 KB	21.1 KB
https://upload.wikim...llege2008.svg.png	image	21.7 KB	20.6 KB
https://upload.wikim...eting_2009-11.jpg	image	21.3 KB	20.3 KB

Requests and sizes per content type

Content	Transfer Size	Content Size	Requests
html	151.7 KB	1006.5 KB	1
css	28.4 KB	196.6 KB	2
javascript	487.4 KB	2.0 MB	8
image	947.2 KB	872.2 KB	72
svg	18.0 KB	8.5 KB	16
Total	1.6 MB	4.0 MB	99

Data per domain

Domain	Total download time	Transfer Size	Content Size	Requests
en.wikipedia.beta.wmcloud.org	11.693 s	684.6 KB	3.2 MB	27
upload.wikimedia.org	63.819 s	942.6 KB	870.2 KB	69
upload.wikimedia.beta.wmcloud.org	643 ms	2.7 KB	884 B	2
meta.wikimedia.beta.wmcloud.org	325 ms	1.5 KB	497 B	1
auth.wikimedia.beta.wmcloud.org	648 ms	N/A	0 b	1
login.wikimedia.beta.wmcloud.org	285 ms	1.3 KB	254 B	1

Expires and last modified statistics

type	min	median	max
Expires	0 seconds	0 seconds	1 year
Last modified	3 days	45 weeks	12 years

Console log

No console log messages.

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	1.9 KB	1
font	0 b	0
Total	1.9 KB	1

Requests loaded after onContentLoad

Includes requests done after DOM content loaded.

Content	Transfer Size	Requests
html	0 b	0
css	0 b	0
javascript	154.4 KB	5
image	1.9 KB	1
font	0 b	0
svg	10.6 KB	10
Total	166.9 KB	18

Render blocking requests

Render blocking information directly from Chrome.

Blocking	In body parser blocking	Potentially blocking
2	0	1

Render information

URL	Type
https://en.wikipedia...ud.org/w/load.php	non_blocking
https://en.wikipedia...ud.org/w/load.php	non_blocking
https://en.wikipedia...ud.org/w/load.php	blocking
https://en.wikipedia...ud.org/w/load.php	non_blocking
https://en.wikipedia...ud.org/w/load.php	potentially_blocking
https://en.wikipedia...ud.org/w/load.php	non_blocking
https://en.wikipedia...ud.org/w/load.php	blocking
https://en.wikipedia...ud.org/w/load.php	non_blocking
https://meta.wikimed...d.org/w/index.php	non_blocking
https://login.wikime...gin/checkLoggedIn	non_blocking
https://en.wikipedia...alAutoLogin/start	non_blocking
https://auth.wikimed...gin/checkLoggedIn	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		270
Max Potential First Input Delay		152
Long Tasks before First Paint	1	99
Long Tasks before First Contentful Paint	1	99
Long Tasks before Largest Contentful Paint	2	212
Long Tasks after Load Event End	0	0
Total Long Tasks	8	719

CPU last long task happened at 3.125 s

Individual Long Tasks

name	startTime	duration	containerType
unknown	1406	99	window
unknown	1521	113	window
unknown	1657	95	window
self	2106	52	window
self	2174	152	window
self	2415	87	window
unknown	2512	69	window
self	3125	52	window

CPU time spent

Calculated using Tracium.

Categories (ms)
parseHTML	50
styleLayout	606
paintCompositeRender	59
scriptParseCompile	4
scriptEvaluation	418
garbageCollection	13
other	430

Events (ms)
FunctionCall	383
UpdateLayoutTree	367
Layout	233
RunTask	225
PrePaint	118
ParseHTML	47
Paint	47
v8.run	14
DecodedDataDocumentParser::AppendBytes	14
Layerize	14
V8.GC_MC_INCREMENTAL_EMBEDDER_TRACING	14
CpuProfiler::StartProfiling	10
DocumentLoader::BodyLoadingFinished	10

Time spent per request

URL	CPU time (ms)
https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022	420
https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionEventsSampleRate%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%2CxLab%7Cext.echo.centralauth%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.errors%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.xLab%7Cjquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctoc%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Ccodex%7Cmw.config.values.wbDataBridgeConfig%7Cmw.cx.SiteMapper%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.indicators%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.data-bridge.init%7Cwikibase.client.vector-2022&skin=vector-2022&version=h4cs7	258

URL

CPU time (ms)

https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022

420

258

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

Screenshots

afterPageCompleteCheck.jpg

layoutShift.jpg

largestContentfulPaint.jpg

Run 4 summary

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

Summary

Waterfall

Video

Filmstrip

Coach

Coach score

Performance advice (71)

Best practice advice (66)

Privacy advice (87)

Page info

Technologies used to build the page.

Visual Metrics

Browser Metrics

Largest Contentful Paint

Detected Cumulative Layout Shift

Interaction to Next Paint

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