Run 4 summary

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

Tested 2026-04-29 17:18:33 using Chrome 146.0.7680.80 (script).(runtime settings).

Test visiting multiple pages

First hit the Main_Page with an empty browser cache and then visit Obama

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SummaryWaterfall MetricsVideoFilmstrip CoachPageXrayCPU Screenshots

Summary

MetricValue
Page metrics
Performance score76
Total page size1.1 MB
Requests82
Timing metrics
TTFB118 ms
First Paint916 ms
Fully Loaded1.401 s
Google Web Vitals
TTFB118 ms
First Contentful Paint (FCP) 916 ms
Largest Contentful Paint (LCP) 916 ms
Cumulative Layout Shift (CLS) 0.00
Total Blocking Time169 ms
Max Potential FID101 ms
CPU metrics
CPU long tasks6
CPU last long task happens at1.515 s
Visual Metrics
First Visual Change934 ms
Speed Index950 ms
Visual Complete 85%934 ms
Visual Complete 99%1.567 s
Last Visual Change1.667 s
Screenshot
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Waterfall

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| Filmstrip | 

Filmstrip

Use--filmstrip.showAll to show all filmstrips.

0 s
0.2 smwStartup 138 ms
0.5 sCPU Long Task duration 412 ms
1 sFirst Contentful Paint 916 msLCP <P> 916 msDOM Content Loaded Time 931 msFirst Visual Change 934 msVisual Complete 85% 934 msHeading 934 msVisual Complete 95% 967 msLargest Image 967 ms
1.1 sCPU Long Task duration 93 ms
1.2 sCPU Long Task duration 101 ms
1.3 sLayout Shift 0.00000 1.281 sCPU Long Task duration 78 ms
1.4 sCPU Long Task duration 70 ms
1.5 sFully Loaded 1.401 sPage Load Time 1.476 s
1.6 sCPU Long Task duration 77 msVisual Complete 99% 1.567 s
1.7 sLayout Shift 0.00055 1.643 sLast Visual Change 1.667 s
| Performance advice | Best practice advice | Privacy advice | Page info | Technologies | 

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.

I am the coach

Coach score

Performance advice (76)

TitleAdviceScore
Don't scale images in the browser (avoidScalingImages)The page has 6 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.40
Description: It's easy to scale images in the browser and make sure they look good in different devices, however that is bad for performance! Scaling images in the browser takes extra CPU time and will hurt performance on mobile. And the user will download extra kilobytes (sometimes megabytes) of data that could be avoided. Don't do that, make sure you create multiple version of the same image server-side and serve the appropriate one.
Offenders:
  • https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en-25.svg
  • https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-tagline-en-25.svg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Barack_Obama_signature...signature.svg.png
  • 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/7/79/PPACA_Premium_Chart.jp...Premium_Chart.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/4/4b/Michelle_Obama_2013_of...cial_portrait.jpg
    • 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.95
    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 6 CPU long tasks with the total of 831 ms. The total blocking time is 169 ms and 1 long task before first contentful paint with total time of 412 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.0
    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
  • self
  • self
  • unknown
  • unknown
    • Avoid extra requests by setting cache headers (cacheHeaders)The page has 65 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 737.4 kB the next access.0
    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/en/thumb/8/8c/Extended-protection-shackle...n-shackle.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/f5/Poster-sized_portrait_..._Barack_Obama.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Seal_of_the_President_...ed_States.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/3/33/Ann_Dunham_with_father_and_..._and_children.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Barry_Soetoro_school_r...school_record.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Nuvola_apps_kaboodle.s..._kaboodle.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/3/3d/Obamas_at_church_on_In...tion_Day_2013.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Obamamiltondavis1.jpg/...amiltondavis1.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Chicago%2C_November_2%...5471954323%29.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/BarackObamaportrait.jp...Obamaportrait.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/2/24/ElectoralCollege2008.s...llege2008.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/4/44/ElectoralCollege2012.s...llege2012.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Modern_Liberalism_Flag...American_Flag.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Yellow_flag_waving.svg...ag_waving.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/a/a4/Flag_of_the_United_States.s...ed_States.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/e/e9/Official_portrait_of_B..._Barack_Obama.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/4/4b/Barack_Obama_visiting_...rora_shooting.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/9/9f/Job_Growth_by_U.S._Pre...resident_-_v1.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/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/9/99/P06409PS-0571_%2835946...3594694537%29.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Barack_Obama%27s_trip_..._2016_%289%29.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Barack_Obama_with_Afgh...and_Joe_Biden.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Obama_and_Biden_await_..._on_bin_Laden.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Handshake_between_the_...C3%BAl_Castro.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Barack_Obama_welcomes_...e_Oval_Office.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/Barack_Obama_talks_wit...8637772147%29.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Vladimir_Putin_and_Bar...5-09-29%29_01.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/9/96/Obama_Macri_October_20..._October_2017.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/15/P20220405AS-1082_%2852...2067439422%29.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/f6/20260306_Chicago%2C_Es...-_Juan_Cano17.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/b/b3/NewDemCoalition-logo.j...oalition-logo.jpg
  • https://upload.wikimedia.org/wikipedia/en/thumb/0/01/A_coloured_voting_box.svg/2...oting_box.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/c/c0/Gallup_Poll-Approval_R...ack_Obama.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/6/69/P_vip.svg/40px-P_vip.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/a/a4/Flag_of_the_United_States.s...ed_States.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Flag_of_Hawaii.svg/40p...of_Hawaii.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/9/9b/Flag_of_Chicago%2C_Ill..._Illinois.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/0/01/Flag_of_Illinois.svg/4..._Illinois.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/Balance%2C_by_David.sv..._by_David.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/0/01/A_coloured_voting_box.svg/4...oting_box.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/c/c1/Blue_iPod_Nano.jpg/20px-Blue_iPod_Nano.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/9/9d/IPhone5white.png/20px-IPhone5white.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/40p...uote-logo.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progr...ogressive.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/2/21/Speaker_Icon.svg/20px-Speaker_Icon.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/2...ory_class.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/20px-...ist_class.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/4/4b/Michelle_Obama_2013_of...cial_portrait.jpg
  • https://upload.wikimedia.org/wikipedia/en/thumb/e/ed/Nobel_Prize.png/120px-Nobel_Prize.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/20px-Commons-logo.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/40px...data-logo.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg
  • https://upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg
  • https://upload.wikimedia.org/wikipedia/commons/4/4d/Icon_pdf_file.png
  • https://upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg
    • Long cache headers is good (cacheHeadersLong)The page has 1 request that have a shorter cache time than 30 days (but still a cache time).99
    Description: Setting a cache header is good. Setting a long cache header (at least 30 days) is even better beacause then it will stay long in the browser cache. But what do you do if that asset change? Rename it and the browser will pick up the new version.
    Offenders:
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
    • Make each CSS response small (optimalCssSize)https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.styles%7Cext.phonos.icons%2Cstyles%7Cext.tmh.player.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cjquery.makeCollapsible.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.init&only=styles&skin=vector-2022 size is 24.9 kB (24882) and that is bigger than the limit of 14.5 kB. Try to make the CSS files fit into 14.5 KB.90
    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:
    URLTransfer sizeContent size
    https://en.wikipedia.org/w/load.php...ia.org/w/load.php 24.3 KB188.1 KB

    Best practice advice (88)

    TitleAdviceScore
    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 1419 characters long. https://en.wikipedia...wiki/Barack_Obama has a header content-security-policy-report-only that is 1397 characters long. 98
    Description: Do not send response headers that are too long.
    Offenders:
  • https://en.wikipedia.org/wiki/Barack_Obama
  • https://en.wikipedia.org/wiki/Barack_Obama
    • Avoid unnecessary headers (unnecessaryHeaders)There are 13 responses that sets both a max-age and expires header. There are 82 responses that sets a server header. 5
    Description: Do not send headers that you don't need. We look for p3p, cache-control and max-age, pragma, server and x-frame-options headers. Have a look at Andrew Betts - Headers for Hackers talk as a guide https://www.youtube.com/watch?v=k92ZbrY815c or read https://www.fastly.com/blog/headers-we-dont-want.
    Offenders:
  • https://en.wikipedia.org/wiki/Barack_Obama
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://upload.wikimedia.org/wikipedia/en/thumb/8/8c/Extended-protection-shackle...n-shackle.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/f5/Poster-sized_portrait_..._Barack_Obama.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Seal_of_the_President_...ed_States.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/3/33/Ann_Dunham_with_father_and_..._and_children.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Barry_Soetoro_school_r...school_record.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Nuvola_apps_kaboodle.s..._kaboodle.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/3/3d/Obamas_at_church_on_In...tion_Day_2013.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Obamamiltondavis1.jpg/...amiltondavis1.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Chicago%2C_November_2%...5471954323%29.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/BarackObamaportrait.jp...Obamaportrait.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/2/24/ElectoralCollege2008.s...llege2008.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/4/44/ElectoralCollege2012.s...llege2012.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Modern_Liberalism_Flag...American_Flag.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Yellow_flag_waving.svg...ag_waving.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/a/a4/Flag_of_the_United_States.s...ed_States.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/e/e9/Official_portrait_of_B..._Barack_Obama.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/4/4b/Barack_Obama_visiting_...rora_shooting.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/9/9f/Job_Growth_by_U.S._Pre...resident_-_v1.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/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/9/99/P06409PS-0571_%2835946...3594694537%29.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Barack_Obama%27s_trip_..._2016_%289%29.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Barack_Obama_with_Afgh...and_Joe_Biden.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Obama_and_Biden_await_..._on_bin_Laden.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Handshake_between_the_...C3%BAl_Castro.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Barack_Obama_welcomes_...e_Oval_Office.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/Barack_Obama_talks_wit...8637772147%29.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Vladimir_Putin_and_Bar...5-09-29%29_01.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/9/96/Obama_Macri_October_20..._October_2017.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/15/P20220405AS-1082_%2852...2067439422%29.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/f6/20260306_Chicago%2C_Es...-_Juan_Cano17.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/b/b3/NewDemCoalition-logo.j...oalition-logo.jpg
  • https://upload.wikimedia.org/wikipedia/en/thumb/0/01/A_coloured_voting_box.svg/2...oting_box.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/c/c0/Gallup_Poll-Approval_R...ack_Obama.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/6/69/P_vip.svg/40px-P_vip.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/a/a4/Flag_of_the_United_States.s...ed_States.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Flag_of_Hawaii.svg/40p...of_Hawaii.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/9/9b/Flag_of_Chicago%2C_Ill..._Illinois.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/0/01/Flag_of_Illinois.svg/4..._Illinois.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/Balance%2C_by_David.sv..._by_David.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/0/01/A_coloured_voting_box.svg/4...oting_box.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/c/c1/Blue_iPod_Nano.jpg/20px-Blue_iPod_Nano.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/9/9d/IPhone5white.png/20px-IPhone5white.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/40p...uote-logo.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progr...ogressive.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/2/21/Speaker_Icon.svg/20px-Speaker_Icon.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/2...ory_class.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/20px-...ist_class.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/4/4b/Michelle_Obama_2013_of...cial_portrait.jpg
  • https://upload.wikimedia.org/wikipedia/en/thumb/e/ed/Nobel_Prize.png/120px-Nobel_Prize.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/20px-Commons-logo.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/40px...data-logo.svg.png
  • https://en.wikipedia.org/w/skins/Vector/resources/skins.vector.styles/images/arr...n-progressive.svg
  • https://en.wikipedia.org/w/skins/Vector/resources/skins.vector.styles/images/lin...r-progressive.svg
  • https://en.wikipedia.org/w/resources/src/mediawiki.skinning/images/magnify-clip-ltr.svg?8330e
  • https://upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg
  • https://upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg
  • https://upload.wikimedia.org/wikipedia/commons/4/4d/Icon_pdf_file.png
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php
  • https://en.wikipedia.org/w/load.php...ia.org/w/load.php

    • Privacy advice (94)

    TitleAdviceScore
    Set a referrer-policy header to make sure you do not leak user information. (referrerPolicyHeader)Set a referrer-policy header to make sure you do not leak user information.0
    Description: Referrer Policy is a new header that allows a site to control how much information the browser includes with navigations away from a document and should be set by all sites. https://scotthelme.co.uk/a-new-security-header-referrer-policy/.
    Offenders:
  • https://en.wikipedia.org/wiki/Barack_Obama

    • Page info

    Page info
    TitleBarack Obama - Wikipedia
    GeneratorMediaWiki 1.46.0-wmf.24
    Width1904
    Height58755
    DOM elements23098
    Avg DOM depth18
    Max DOM depth32
    Iframes0
    Script tags5
    Local storage1.0 MB
    Session storage0 b
    Network Information API3g
    Resource Hints
    dns-prefetch
    https://meta.wikimedia.org/
    https://en.wikipedia.org/wiki/auth.wikimedia.org
    preconnect
    https://upload.wikimedia.org/

    Technologies used to build the page.

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

    TechnologyConfidenceCategory
    MediaWiki 100  Wikis
    PHP 100  Programming languages
    Amazon Web Services 100  PaaS
    Apache Traffic Server 9.2.13100  Web servers
    HSTS 100  Security
    Amazon S3 100  CDN
    | Browser metrics | Visual Metrics | Largest Contentful Paint | Cumulative Layout Shift | Long Aninimation Frames | Visual Elements | Metrics from CDP | Server timings | 

    Visual Metrics

    Visual Metrics
    First Visual Change934 ms
    Speed Index950 ms
    Largest Image967 ms
    Heading934 ms
    LargestContentfulPaint967 ms
    Last Meaningful Paint967 ms
    Largest Contentful Paint967 ms
    Visual Complete 85%934 ms
    Visual Complete 95%967 ms
    Visual Complete 99%1.567 s
    Last Visual Change1.667 s
    Visual Readiness733 ms

    Browser Metrics

    Navigation Timing
    backEndTime118 ms
    domContentLoadedTime931 ms
    domInteractiveTime931 ms
    domainLookupTime0 ms
    frontEndTime1.068 s
    pageDownloadTime291 ms
    pageLoadTime1.476 s
    redirectionTime0 ms
    serverConnectionTime0 ms
    serverResponseTime402 ms
    Google Web Vitals
    Time to first byte (TTFB)118 ms
    First Contentful Paint (FCP)916 ms
    Largest Contentful Paint (LCP)916 ms
    Cumulative Layout Shift (CLS)0.00
    Total Blocking Time (TBT)169 ms
    First Contentful Paint info
    Elements that needed recalculate style before FCP16156
    Time spent in recalculate style before FCP208.413 ms
    Extra timings
    TTFB118 ms
    First Paint916 ms
    Load Event End1.477 s
    Fully loaded1.401 s
    User Timing marks
    mwStartup138 ms

    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 typeP
    Element/tag<p></p>
    Render time 916 ms
    Element render delay798 ms
    TTFB118 ms
    Resource delay0 ms
    Resource load duration0 ms
    Elements that needed recalculate style before LCP16156
    Time spent in recalculate style before LCP208.413 ms
    Load time0 ms
    Size (width*height)172571
    DOM path
    div:eq(2) > div > div:eq(2) > main#content > div#bodyContent > div#mw-content-text > div:eq(1) > p:eq(2)> div:eq(2) > div > div:eq(2) > main#content > div#bodyContent > div#mw-content-text > div:eq(1) > p:eq(2)>
    LCP

    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

    0.00055 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.

    ScoreHTML Element
    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-Legislative_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_(2009–2017) > 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-Cultural_and_political_image > button > span:eq(0)
    Layout shift

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

    Long Animation Frames

    Read more about the Long Animation Frames API here here.

    The top 10 longest animation frames entries

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    348 ms317.4 ms380.2 ms0.1 ms380.1 ms
    https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022

    Invoker:  https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022
    Invoker Type: classic-script
    Window attribution: self

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

    Invoker:  IdleRequestCallback
    Invoker Type: user-callback
    Window attribution: self
    Source char position: 14415

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    140.6 ms130.1 ms97.7 ms42.7 ms55 ms
    https://en.wikipedia.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.org/w/load.php?lang=en&modules=ext.cite.ux-enhancements%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.phonos.init%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%7Cjquery%7Cjquery.makeCollapsible%2Cspinner%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.page.media%7Cmediawiki.toc%7Cmw.cx.SiteMapper&skin=vector-2022&version=1amp7

    Invoker:  TimerHandler:setTimeout
    Invoker Type: user-callback
    Window attribution: self
    Source char position: 85546

    https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.ux-enhancements%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.phonos.init%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%7Cjquery%7Cjquery.makeCollapsible%2Cspinner%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.page.media%7Cmediawiki.toc%7Cmw.cx.SiteMapper&skin=vector-2022&version=1amp7

    Invoker:  TimerHandler:setTimeout
    Invoker Type: user-callback
    Window attribution: self
    Source char position: 85546

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

    Forced Style And Layout Duration: 21 ms

    Invoker:  FrameRequestCallback
    Invoker Type: user-callback
    Source Function Name:  flushCssBuffer
    Window attribution: self
    Source char position: 3240

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    96.2 ms106.3 ms67.5 ms0 ms67.5 ms
    https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.ux-enhancements%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.phonos.init%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%7Cjquery%7Cjquery.makeCollapsible%2Cspinner%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.page.media%7Cmediawiki.toc%7Cmw.cx.SiteMapper&skin=vector-2022&version=1amp7

    Invoker:  TimerHandler:setTimeout
    Invoker Type: user-callback
    Window attribution: self
    Source char position: 85546

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    28.9 ms3.9 ms75.4 ms0 ms75.4 ms
    No availible script information.
    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    26.1 ms55 ms35 ms18.5 ms16.5 ms
    https://en.wikipedia.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.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 durationRender durationPreLayout DurationStyle And Layout Duration
    0 ms27.1 ms28.6 ms0 ms28.6 ms
    No availible script information.

    Server timings

    namedurationdescription
    cache0hit-front
    host0cp3070

    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

    namevalue
    AudioHandlers0
    AudioWorkletProcessors0
    Documents33
    Frames31
    JSEventListeners2340
    LayoutObjects28274
    MediaKeySessions0
    MediaKeys0
    Nodes51878
    Resources123
    ContextLifecycleStateObservers54
    V8PerContextDatas2
    WorkerGlobalScopes0
    UACSSResources3
    RTCPeerConnections0
    ResourceFetchers33
    AdSubframes0
    DetachedScriptStates0
    ArrayBufferContents0
    LayoutCount11
    RecalcStyleCount15
    LayoutDuration248
    RecalcStyleDuration362
    DevToolsCommandDuration100
    ScriptDuration347
    V8CompileDuration1
    TaskDuration1559
    TaskOtherDuration502
    ThreadTime2
    ProcessTime4
    JSHeapUsedSize9980092
    JSHeapTotalSize10928128
    FirstMeaningfulPaint913

    Visual Elements

    NameDisplay TimeX YWidthHeight
    LargestImage (250px-President_Barack_Obama.jpg)967 ms 1145 315 250 312
    <img alt="Obama standing in the Oval Office with his arms folded and smiling" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8d/President_Barack_Obama.jpg/250px-President_Barack_Obama.jpg" decoding="async" width="250" height="312" style="--mw-file-upright: 1" class="mw-file-element mw-file-upright" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8d/President_Barack_Obama.jpg/500px-President_Barack_Obama.jpg 2x" data-file-width="2687" data-file-height="3356">
    Heading934 ms 478 90 796 40
    <h1 id="firstHeading" class="firstHeading mw-first-heading"></h1>
    LargestContentfulPaint967 ms 478 419 948 286
    <p></p>
    | Summary  | Largest responses  | Requests and sizes per content type  | Data per domain | Expires and last modified statistics  | Console log  | Render blocking requests  | 

    PageXray

    How the page is built.

    Summary
    HTTP versionHTTP/2.0
    Total requests82
    Total domains2
    Total transfer size1.1 MB
    Total content size2.8 MB
    Responses missing compression4
    Number of cookies60
    Third party cookies0
    Requests per response code
    20081
    3041

    Largest assets on the page (by transfer size)

    URLTypeTransfer SizeContent Size
    https://en.wikipedia...wiki/Barack_Obamahtml318.5 KB1.8 MB
    https://en.wikipedia...ia.org/w/load.phpjavascript72.7 KB241.2 KB
    https://upload.wikim...-_Juan_Cano17.jpgimage30.7 KB29.6 KB
    https://upload.wikim...resident_-_v1.pngimage29.8 KB28.6 KB
    https://upload.wikim...x-Nobel_Prize.pngimage26.9 KB25.8 KB
    https://en.wikipedia...ia.org/w/load.phpcss24.3 KB188.1 KB
    https://upload.wikim...American_Flag.pngimage24.0 KB22.8 KB
    https://upload.wikim...school_record.jpgimage23.5 KB22.4 KB
    https://upload.wikim..._2016_%289%29.jpgimage23.3 KB22.2 KB
    https://upload.wikim...es_Senate.svg.pngimage23.2 KB22.1 KB
    https://upload.wikim..._Barack_Obama.jpgimage22.6 KB21.5 KB
    https://upload.wikim..._Barack_Obama.jpgimage22.4 KB21.3 KB
    https://upload.wikim...llege2012.svg.pngimage22.2 KB21.1 KB
    https://upload.wikim...llege2008.svg.pngimage21.7 KB20.6 KB
    https://upload.wikim...5471954323%29.jpgimage21.4 KB20.2 KB
    https://upload.wikim..._and_children.jpgimage20.1 KB19.0 KB
    https://upload.wikim...cial_portrait.jpgimage19.9 KB18.7 KB
    https://upload.wikim...2067439422%29.jpgimage19.6 KB18.4 KB
    https://upload.wikim...amiltondavis1.jpgimage18.5 KB17.4 KB
    https://upload.wikim...Premium_Chart.jpgimage18.2 KB17.1 KB

    Requests and sizes per content type

    ContentHeader SizeTransfer SizeContent SizeRequests
    html0 b318.5 KB1.8 MB1
    css0 b24.3 KB188.1 KB1
    javascript0 b72.7 KB241.2 KB1
    image0 b715.9 KB648.8 KB62
    svg0 b19.7 KB7.7 KB17
    Total0 b1.1 MB2.8 MB82

    Data per domain

    DomainTotal download timeTransfer SizeContent SizeRequests
    en.wikipedia.org3.044 s431.0 KB2.2 MB17
    upload.wikimedia.org45.663 s720.1 KB651.8 KB65

    Expires and last modified statistics

    typeminmedianmax
    Expires0 seconds0 seconds1 year
    Last modified2 minutes30 weeks9 years

    Console log

    The page logs the following messages to the console.

    LevelMessage
    WARNING https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.centralautologin%7Cext.checkUser.clientHints%7Cext.cx.eventlogging.campaigns%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.uls.interface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%7Cmediawiki.String%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Ccodex%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.vector-2022%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=1t0h7 570:434 "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.org/w/load.php?lang=en&modules=mediawiki.base&skin=vector-2022&version=1ozi1 7:434 "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 onContentLoad

    Includes requests done after DOM content loaded.

    ContentTransfer SizeRequests
    html0 b0
    css0 b0
    javascript0 b0
    image0 b0
    font0 b0
    svg11.3 KB10
    Total11.3 KB10

    Render blocking requests

    Render blocking information directly from Chrome.

    BlockingIn body parser blockingPotentially blocking
    100

    Render information

    URLType
    https://en.wikipedia...ia.org/w/load.phpnon_blocking
    https://en.wikipedia...ia.org/w/load.phpblocking
    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.

    TypeQuantityTotal duration (ms)
    Total Blocking Time 169
    Max Potential First Input Delay 101
    Long Tasks before First Paint1412
    Long Tasks before First Contentful Paint1412
    Long Tasks before Largest Contentful Paint1412
    Long Tasks after Load Event End177
    Total Long Tasks6831

    CPU last long task happened at 1.515 s

    Individual Long Tasks

    namestartTimedurationcontainerIdcontainerNamecontainerSrccontainerType
    unknown450412window
    self107393window
    self1183101window
    self129878window
    unknown139170window
    unknown151577window

    CPU time spent

    Calculated using Tracium.

    Categories (ms)
    parseHTML91
    styleLayout612
    paintCompositeRender20
    scriptParseCompile1
    scriptEvaluation349
    garbageCollection45
    other455
    Events (ms)
    UpdateLayoutTree362
    FunctionCall312
    Layout244
    RunTask217
    PrePaint87
    ParseHTML87
    CpuProfiler::StartProfiling85
    V8.GC_HEAP_EMBEDDER_TRACING_EPILOGUE19
    DocumentLoader::BodyLoadingFinished17
    Paint16
    V8.GC_MC_INCREMENTAL_EMBEDDER_TRACING15
    RunMicrotasks10

    Time spent per request

    URLCPU time (ms)
    https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022367
    https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.ux-enhancements%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.phonos.init%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%7Cjquery%7Cjquery.makeCollapsible%2Cspinner%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.page.media%7Cmediawiki.toc%7Cmw.cx.SiteMapper&skin=vector-2022&version=1amp7198
    | afterPageCompleteCheck.jpg | layoutShift.jpg | largestContentfulPaint.jpg | 

    Screenshots

    afterPageCompleteCheck.jpg

    afterPageCompleteCheck.jpg

    layoutShift.jpg

    layoutShift.jpg

    largestContentfulPaint.jpg

    largestContentfulPaint.jpg