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

Summary

Metric	Value
Page metrics
Performance score	69
Total page size	1.7 MB
Requests	100
Timing metrics
TTFB	801 ms
First Paint	1.884 s
Fully Loaded	3.820 s
Google Web Vitals
TTFB	801 ms
First Contentful Paint (FCP)	1.884 s
Largest Contentful Paint (LCP)	2.056 s
Cumulative Layout Shift (CLS)	0.04
1.072 s
Total Blocking Time	278 ms
Max Potential FID	140 ms
CPU metrics
CPU long tasks	11
CPU last long task happens at	3.020 s
Visual Metrics
First Visual Change	1.900 s
Speed Index	2.136 s
Visual Complete 85%	2.066 s
Visual Complete 99%	3.400 s
Last Visual Change	3.400 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

1.9 smwStartup 1.822 sFirst Contentful Paint 1.884 sCPU Long Task duration 120 msFirst Visual Change 1.900 s

2 sLayout Shift 0.00330 1.996 s

2.1 sCPU Long Task duration 53 msLCP <P> mwAlQ 2.056 sVisual Complete 85% 2.066 sCPU Long Task duration 64 ms

2.2 sCPU Long Task duration 53 ms

2.3 sCPU Long Task duration 67 ms

2.4 sCPU Long Task duration 68 ms

2.5 sCPU Long Task duration 75 ms

2.6 sDOM Content Loaded Time 2.535 s

2.7 sCPU Long Task duration 53 msLayout Shift 0.01443 2.645 sCPU Long Task duration 140 ms

2.8 s

2.9 sCPU Long Task duration 52 ms

3 sLayout Shift 0.00000 2.945 s

3.1 sCPU Long Task duration 83 ms

3.2 s

3.3 s

3.4 sLayout Shift 0.00055 3.307 smwCentralNoticeBanner 3.320 sLayout Shift 0.02000 3.339 sLast Visual Change 3.400 sVisual Complete 95% 3.400 sVisual Complete 99% 3.400 sLargest Image 3.400 sHeading 3.400 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 69
Privacy score 87
Best practice score 74

Performance advice (69)

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

Have a fast first contentful paint (firstContentfulPaint)

First contentful paint can be improved (1.884 s). It is in the Google Web Vitals needs improvement range, slower than 1.8 seconds.

Description: The First Contentful Paint (FCP) metric measures the time from when the page starts loading to when any part of the page content is rendered on the screen. For this metric, "content" refers to text, images (including background images), <svg> elements, or non-white <canvas> elements.

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 11 CPU long tasks with the total of 828 ms. The total blocking time is 278 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

Avoid doing redirects (assetsRedirects)

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

Description: A redirect is one extra step for the user to download the asset. Avoid that if you want to be fast. Redirects are even more of a showstopper on mobile.

Offenders:

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

Avoid extra requests by setting cache headers (cacheHeaders)

The page has 73 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 949.8 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-So...ound-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/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.s...0px-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-O...fice-book.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/b/b8/Barack_Obama_and_Bill_..._Bill_Clinton.jpg

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-L...udspeaker.svg.png

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

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-...x-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/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/4/47/Sound-icon.svg/60px-So...ound-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-...mons-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/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/metawiki/wiki/Special:CentralAutoLogin/c...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 879.5 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 394.5 kB and the uncompressed size is 1.7 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	21.2 KB	63.9 KB
https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php	17.7 KB	60.2 KB
https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php	314.9 KB	1.3 MB
https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php	25.3 KB	120.4 KB
https://en.wikipedia.beta.wmcloud.org/w/load.php...ud.org/w/load.php	2.8 KB	14.8 KB
https://meta.wikimedia.beta.wmcloud.org/w/index.php...d.org/w/index.php	1.8 KB	497 B
https://auth.wikimedia.beta.wmcloud.org/metawiki/wiki/Special:CentralAutoLogin/c...gin/checkLoggedIn	1.6 KB	254 B

Make each CSS response small (optimalCssSize)

https://en.wikipedia.beta.wmcloud.org/w/load.php?lang=en&modules=ext.cite.parsoid.styles%7Cext.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%7Cmediawiki.skinning.content.parsoid%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.data-bridge.externalModifiers%7Cwikibase.client.init&only=styles&skin=vector-2022 size is 27 kB (27008) 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	26.4 KB	201.1 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://auth.wikimedia.beta.wmcloud.org/metawiki/wiki/Special:CentralAutoLogin/c...gin/checkLoggedIn

Best practice advice (74)

Title	Advice	Score
Meta description (metaDescription)	The page is missing a meta description.	0
Description: Use a page description to make the page more relevant to search engines.
Do not send too long headers (longHeaders)	https://en.wikipedia...wiki/Barack_Obama has a header content-security-policy that is 6773 characters long. https://en.wikipedia...ud.org/w/load.php has a header sourcemap that is 1558 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 (68 requests and 943.4 kB) then first party (32 requests and 828 kB). The page transfer more bytes from third party domains (943.4 kB) then first party (828 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 23 responses that sets both a max-age and expires header. There are 100 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/mobile/copyright/beta-wordmark.svg https://en.wikipedia.beta.wmcloud.org/static/images/mobile/copyright/beta-wordmark.svg 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-So...ound-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/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.s...0px-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-O...fice-book.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/b/b8/Barack_Obama_and_Bill_..._Bill_Clinton.jpg 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-L...udspeaker.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/2/26/Obama_family_portrait_...he_Green_Room.jpg 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-...x-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/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/4/47/Sound-icon.svg/60px-So...ound-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-...mons-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://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/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/metawiki/wiki/Special:CentralAutoLogin/c...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 67 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

Page info

Page info
Title	Barack Obama - Wikipedia, the free encyclopedia
Generator	MediaWiki 1.47.0-alpha
Width	1904
Height	56487
DOM elements	17288
Avg DOM depth	18
Max DOM depth	31
Iframes	0
Script tags	6
Local storage	1.3 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
Amazon Web Services	100	PaaS
Apache Traffic Server 9.2.11	100	Web servers
HSTS	100	Security
Amazon S3	100	CDN

Visual Metrics

Visual Metrics
First Visual Change	1.900 s
Speed Index	2.136 s
Largest Image	3.400 s
Heading	3.400 s
LargestContentfulPaint	3.400 s
Last Meaningful Paint	3.400 s
Largest Contentful Paint	3.400 s
Visual Complete 85%	2.066 s
Visual Complete 95%	3.400 s
Visual Complete 99%	3.400 s
Last Visual Change	3.400 s
Visual Readiness	1.500 s

Browser Metrics

Navigation Timing
backEndTime	801 ms
domContentLoadedTime	2.535 s
domInteractiveTime	2.535 s
domainLookupTime	176 ms
frontEndTime	1.837 s
pageDownloadTime	975 ms
pageLoadTime	3.613 s
redirectionTime	0 ms
serverConnectionTime	408 ms
serverResponseTime	1.187 s

Google Web Vitals
Time to first byte (TTFB)	801 ms
First Contentful Paint (FCP)	1.884 s
Largest Contentful Paint (LCP)	2.056 s
Cumulative Layout Shift (CLS)	0.04
Interaction to next paint (INP)	1.072 s
Total Blocking Time (TBT)	278 ms

First Contentful Paint info
Elements that needed recalculate style before FCP	136
Time spent in recalculate style before FCP	12.88 ms

Extra timings
TTFB	801 ms
First Paint	1.884 s
Load Event End	3.613 s
Fully loaded	3.820 s

User Timing marks
mwStartup	1.822 s
mwCentralNoticeBanner	3.320 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 id="mwAlQ"></p>
Render time	2.056 s
Element render delay	1.255 s
TTFB	801 ms
Resource delay	0 ms
Resource load duration	0 ms
Elements that needed recalculate style before LCP	5492
Time spent in recalculate style before LCP	93.652 ms
Element id	mwAlQ
Load time	0 ms
*Size (widthheight)**	237744
DOM path
div:eq(2) > div > div:eq(2) > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > section#mwAQ > p#mwAlQ> div:eq(2) > div > div:eq(2) > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > section#mwAQ > p#mwAlQ>

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

0.03828 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
0.02000	<div class="mw-content-container"></div>,<div class="vector-column-start"></div>,<div class="mw-dismissable-notice"></div>
body > div:eq(2) > div > div:eq(2),body > div:eq(2) > div > div:eq(1),body > div:eq(2) > div > div:eq(0) > div#siteNotice > div:eq(1)
0.01443	<div class="mw-content-container"></div>,<div class="vector-column-start"></div>
body > div:eq(2) > div > div:eq(2),body > div:eq(2) > div > div:eq(1)
0.00330	<div class="mw-page-container"></div>,<header class="vector-header mw-header no-font-mode-scale"></header>
body > div:eq(2),body > div:eq(1) > header
0.00055	<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>,<label class="cdx-label cdx-radio__label" for="skin-client-pref-vector-feature-custom-font-size-value-2"></label>,<label class="cdx-label cdx-radio__label" for="skin-client-pref-vector-feature-custom-font-size-value-1"></label>,<::before></::before>
body > div:eq(2) > 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(2) > 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(2) > 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(2) > 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(2) > 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(2) > 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(2) > 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(2) > 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(2) > 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(2) > 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 1.072 s.

Event type	pointerenter
Element type	BODY
Element class name	skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject page-Barack_Obama rootpage-Barack_Obama skin-vector-2022 action-view uls-dialog-sticky-hide
Event target	body.skin--responsive.skin-vector.skin-vector-search-vue.mediawiki.ltr.sitedir-ltr.mw-hide-empty-elt.ns-0.ns-subject.page-Barack_Obama.rootpage-Barack_Obama.skin-vector-2022.action-view.uls-dialog-sticky-hide
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
111.9 ms	159.2 ms	21.3 ms	21.3 ms	0 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%2CtestKitchen%2CwikimediaEvents%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.testKitchen%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%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=bojye
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 402744
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%2CtestKitchen%2CwikimediaEvents%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.testKitchen%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%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=bojye
Invoker: TimerHandler:setTimeout Invoker Type: user-callback Window attribution: self Source char position: 402744

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
68.7 ms	55.3 ms	69.8 ms	69.6 ms	0.2 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
68.3 ms	21.1 ms	108.2 ms	108.2 ms	0 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
34.4 ms	39.3 ms	48.4 ms	41.1 ms	7.3 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
33.5 ms	101.6 ms	0.3 ms	0.3 ms	0 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
23.8 ms	12.8 ms	63.8 ms	63.8 ms	0 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
22.9 ms	14 ms	62.8 ms	62.8 ms	0 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
19.9 ms	15.7 ms	59.9 ms	59.8 ms	0.1 ms
No availible script information.

Blocking duration	Work duration	Render duration	PreLayout Duration	Style And Layout Duration
11.1 ms	30 ms	49.3 ms	45.6 ms	3.7 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: 14 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
9.8 ms	14.6 ms	49.7 ms	49.7 ms	0 ms
No availible script information.

Server timings

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

Custom metrics collected through JavaScript

There are no custom configured scripts.

Extra metrics collected using scripting

There are no custom extra metrics from scripting.

CDP Performance

name	value
AudioHandlers	0
AudioWorkletProcessors	0
Documents	69
Frames	37
JSEventListeners	916
LayoutObjects	25219
MediaKeySessions	0
MediaKeys	0
Nodes	37129
Resources	114
ContextLifecycleStateObservers	101
V8PerContextDatas	3
WorkerGlobalScopes	0
UACSSResources	9
RTCPeerConnections	0
ResourceFetchers	69
AdSubframes	0
DetachedScriptStates	2
ArrayBufferContents	7
LayoutCount	23
RecalcStyleCount	26
LayoutDuration	219
RecalcStyleDuration	385
DevToolsCommandDuration	200
ScriptDuration	354
V8CompileDuration	3
TaskDuration	1713
TaskOtherDuration	552
ThreadTime	2
ProcessTime	4
JSHeapUsedSize	12702312
JSHeapTotalSize	15822848
FirstMeaningfulPaint	2055

Visual Elements

Name	Display Time	X	Y	Width	Height
LargestImage (250px-President_Barack_Obama.jpg?utm_source=en.wikipedia.beta.wmcloud.org&utm_campaign=index&utm_content=thumbnail)	3.400 s	1146	375	250	312
<img alt="Obama standing with his arms folded and smiling" resource="https://en.wikipedia.beta.wmcloud.org/wiki/File:President_Barack_Obama.jpg" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/President_Barack_Obama.jpg/250px-President_Barack_Obama.jpg?utm_source=en.wikipedia.beta.wmcloud.org&utm_campaign=index&utm_content=thumbnail" decoding="async" data-file-width="2687" data-file-height="3356" data-file-type="bitmap" height="312" width="250" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/President_Barack_Obama.jpg/500px-President_Barack_Obama.jpg?utm_source=en.wikipedia.beta.wmcloud.org&utm_campaign=index&utm_content=thumbnail 2x" class="mw-file-element mw-file-upright" style="--mw-file-upright: 1" id="mwHA">
Heading	3.400 s	478	184	819	40
<h1 id="firstHeading" class="firstHeading mw-first-heading"></h1>
LargestContentfulPaint	3.400 s	478	514	948	390
<p id="mwAlQ"></p>

PageXray

How the page is built.

Summary
HTTP version	HTTP/2.0
Total requests	100
Total domains	5
Total transfer size	1.7 MB
Total content size	5.2 MB
Responses missing compression	10
Number of cookies	74
Third party cookies	67

Requests per response code
200	99
302	1

Largest assets on the page (by transfer size)

URL	Type	Transfer Size	Content Size
https://en.wikipedia...wiki/Barack_Obama	html	366.0 KB	2.6 MB
https://en.wikipedia...ud.org/w/load.php	javascript	314.9 KB	1.3 MB
https://upload.wikim...rsity_cropped.jpg	image	37.7 KB	36.6 KB
https://upload.wikim...-D-BP749-1327.jpg	image	34.5 KB	33.3 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	31.7 KB	30.6 KB
https://upload.wikim...resident_-_v1.png	image	29.8 KB	28.6 KB
https://upload.wikim...he_Green_Room.jpg	image	26.6 KB	25.5 KB
https://en.wikipedia...ud.org/w/load.php	css	26.4 KB	201.1 KB
https://upload.wikim...n_Oval_Office.jpg	image	26.3 KB	25.1 KB
https://en.wikipedia...ud.org/w/load.php	javascript	25.3 KB	120.4 KB
https://upload.wikim..._Barack_Obama.jpg	image	22.6 KB	21.5 KB
https://upload.wikim..._Barack_Obama.jpg	image	22.4 KB	21.3 KB
https://upload.wikim...llege2012.svg.png	image	22.2 KB	21.1 KB
https://upload.wikim...llege2008.svg.png	image	21.8 KB	20.6 KB
https://upload.wikim...eting_2009-11.jpg	image	21.5 KB	20.3 KB
https://upload.wikim...hiteHouse2010.jpg	image	21.3 KB	20.2 KB
https://en.wikipedia...ud.org/w/load.php	javascript	21.2 KB	63.9 KB
https://upload.wikim...-DIG13623-230.jpg	image	21.0 KB	19.9 KB

Requests and sizes per content type

Content	Transfer Size	Content Size	Requests
html	366.0 KB	2.6 MB	1
css	30.1 KB	209.6 KB	2
javascript	385.3 KB	1.6 MB	7
image	926.1 KB	847.3 KB	71
svg	22.4 KB	11.6 KB	18
Total	1.7 MB	5.2 MB	99

Data per domain

Domain	Total download time	Transfer Size	Content Size	Requests
en.wikipedia.beta.wmcloud.org	13.683 s	802.3 KB	4.4 MB	28
upload.wikimedia.org	69.339 s	921.3 KB	845.1 KB	68
upload.wikimedia.beta.wmcloud.org	408 ms	2.9 KB	991 B	2
meta.wikimedia.beta.wmcloud.org	231 ms	1.8 KB	497 B	1
auth.wikimedia.beta.wmcloud.org	296 ms	1.6 KB	254 B	1

Expires and last modified statistics

type	min	median	max
Expires	0 seconds	0 seconds	1 year
Last modified	48 minutes	29 weeks	10 years

Console log

The page logs the following messages to the console.

Level	Message
WARNING	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%2CtestKitchen%2CwikimediaEvents%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.testKitchen%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%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=bojye 974:434 "Use of \"mw.testKitchen.compat.getExperiment()\" is deprecated. mw.testKitchen.compat.getExperiment() is provided for backwards compatibility with existing experiment code. Use mw.testKitchen.getExperiment() instead."
WARNING	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%2CtestKitchen%2CwikimediaEvents%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.testKitchen%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%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=bojye 974:434 "Use of \"mw.testKitchen.compat.getExperiment()\" is deprecated. mw.testKitchen.compat.getExperiment() is provided for backwards compatibility with existing experiment code. Use mw.testKitchen.getExperiment() instead."
WARNING	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%2CtestKitchen%2CwikimediaEvents%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.testKitchen%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%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=bojye 974:434 "Use of \"mw.testKitchen.compat.getExperiment()\" is deprecated. mw.testKitchen.compat.getExperiment() is provided for backwards compatibility with existing experiment code. Use mw.testKitchen.getExperiment() instead."
WARNING	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%2CtestKitchen%2CwikimediaEvents%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.testKitchen%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%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=bojye 974:434 "Use of \"mw.testKitchen.compat.getExperiment()\" is deprecated. mw.testKitchen.compat.getExperiment() is provided for backwards compatibility with existing experiment code. Use mw.testKitchen.getExperiment() instead."
WARNING	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%2CtestKitchen%2CwikimediaEvents%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.testKitchen%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%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=bojye 974:434 "Use of \"mw.testKitchen.compat.getExperimentsByPrefix()\" is deprecated. mw.testKitchen.compat.getExperimentByPrefix() is provided for backwards compatibility with existing experiment code. Use mw.testKitchen.getExperimentByPrefix() instead."
WARNING	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%2CtestKitchen%2CwikimediaEvents%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.testKitchen%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%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=bojye 974:434 "Use of \"mw.testKitchen.compat.getExperiment()\" is deprecated. mw.testKitchen.compat.getExperiment() is provided for backwards compatibility with existing experiment code. Use mw.testKitchen.getExperiment() instead."

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	31.5 KB	4
image	3.1 KB	2
font	0 b	0
svg	11.2 KB	10
Total	45.8 KB	17

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	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://auth.wikimed...gin/checkLoggedIn	non_blocking
https://en.wikipedia...alAutoLogin/start	non_blocking

CPU Long Tasks | CPU Time Spent | CPU Time Spent Per Request |

CPU

Download the Chrome trace log and drag and drop it into Developer Tools / Performance in Chrome.

Download trace log

Long Tasks

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

Type	Quantity	Total duration (ms)
Total Blocking Time		278
Max Potential First Input Delay		140
Long Tasks before First Paint	0	0
Long Tasks before First Contentful Paint	0	0
Long Tasks before Largest Contentful Paint	2	173
Long Tasks after Load Event End	0	0
Total Long Tasks	11	828

CPU last long task happened at 3.020 s

Individual Long Tasks

name	startTime	duration	containerType
unknown	1888	120	window
unknown	2024	53	window
unknown	2093	64	window
unknown	2174	53	window
unknown	2239	67	window
unknown	2321	68	window
unknown	2444	75	window
self	2629	53	window
self	2695	140	window
self	2895	52	window
unknown	3020	83	window

CPU time spent

Calculated using Tracium.

Categories (ms)
parseHTML	132
styleLayout	608
paintCompositeRender	34
scriptParseCompile	3
scriptEvaluation	353
garbageCollection	9
other	423

Events (ms)
UpdateLayoutTree	383
FunctionCall	312
RunTask	222
Layout	221
ParseHTML	125
PrePaint	88
DocumentLoader::BodyLoadingFinished	35
DecodedDataDocumentParser::AppendBytes	30
Paint	26
v8.run	17
HTMLDocumentParser::MaybeFetchQueuedPreloads	12
V8.HandleInterrupts	12
CpuProfiler::StartProfiling	11

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	351
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%2CtestKitchen%2CwikimediaEvents%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.testKitchen%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%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=bojye	189

URL

CPU time (ms)

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

351

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%2CtestKitchen%2CwikimediaEvents%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.testKitchen%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%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=bojye

189

| 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 (69)

Best practice advice (74)

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