Run 1 summary

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

Tested 2020-05-20 08:48:37 using Chrome 83.0.4103.61. 3 runs and connectivity native.  

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Summary

MetricValue
Performance score78
Total page size1.2 MB
Requests101
TTFB137 ms
Fully Loaded2.326 s
First Visual Change603 ms
FCP539 ms
LCP539 ms
CLS0.04479566054243219
Total Blocking Time358 ms
Max Potential FID144 ms
CPU long tasks14
Speed Index664 ms
Visual Complete 85%710 ms
Visual Complete 99%1.917 s
Last Visual Change2.343 s
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0 s
0.3 sCPU Long Task duration 249 ms
0.6 smwStartup 525 msFirst Contentful Paint 539 msLCP <P> 539 ms
0.7 sFirst Visual Change 603 ms
0.8 sVisual Complete 85% 710 msVisual Complete 95% 710 msCPU Long Task duration 52 ms
0.9 sCPU Long Task duration 59 ms
1 sCPU Long Task duration 57 ms
1.1 sCPU Long Task duration 54 ms
1.2 sCPU Long Task duration 55 ms
1.3 sCPU Long Task duration 144 ms
1.4 sCPU Long Task duration 69 ms
1.5 sCPU Long Task duration 102 ms
1.6 sCPU Long Task duration 63 ms
1.8 sCPU Long Task duration 94 ms
2 sVisual Complete 99% 1.917 sDOM Content Loaded Time 1.949 sPage Load Time 1.968 sCPU Long Task duration 95 ms
2.2 smwCentralNoticeBanner 2.159 sCPU Long Task duration 65 ms
2.4 sFully Loaded 2.326 sLast Visual Change 2.343 sCPU Long Task duration 100 ms

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Accessibility advice (48)

TitleAdviceScore
Always use an alt attribute on image tags (altImages)The page has 41 images that lack alt attribute(s) and 41 of them are unique.The page has 5 images where the alt text are too long (longer than 125 characters).0
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Barack_Obama_signature.svg/128px-Barack_Obama_signature.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Seal_of_the_President_of_the_United_States.svg/70px-Seal_of_the_President_of_the_United_States.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/e/e8/Barack_Obama_Sr_Jr.jpg/150px-Barack_Obama_Sr_Jr.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/2/26/Obama_family_portrait_in_the_Green_Room.jpg/220px-Obama_family_portrait_in_the_Green_Room.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/3/3d/Obamas_at_church_on_Inauguration_Day_2013.jpg/220px-Obamas_at_church_on_Inauguration_Day_2013.jpg
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  • https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Obamamiltondavis1.jpg/220px-Obamamiltondavis1.jpg
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  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/BarackObamaportrait.jpg/170px-BarackObamaportrait.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/Lugar-Obama.jpg/220px-Lugar-Obama.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Barack_Obama_Iraq_2006.jpg/220px-Barack_Obama_Iraq_2006.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/3/33/P112912PS-0444_-_President_Barack_Obama_and_Mitt_Romney_in_the_Oval_Office_-_crop.jpg/220px-P112912PS-0444_-_President_Barack_Obama_and_Mitt_Romney_in_the_Oval_Office_-_crop.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Barack_Obama_addresses_joint_session_of_Congress_2009-02-24.jpg/220px-Barack_Obama_addresses_joint_session_of_Congress_2009-02-24.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/6/63/Obama_cabinet_meeting_2009-11.jpg/220px-Obama_cabinet_meeting_2009-11.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/7/75/Celebrating_a_new_America_-lovewins_58242_%2818588276403%29.jpg/220px-Celebrating_a_new_America_-lovewins_58242_%2818588276403%29.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/fc/U.S._Total_Deficits_vs._National_Debt_Increases_2001-2010.png/220px-U.S._Total_Deficits_vs._National_Debt_Increases_2001-2010.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/2/25/US_Employment_Statistics.svg/300px-US_Employment_Statistics.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/6/63/Obama-venice-la.jpg/220px-Obama-venice-la.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/PPACA_Premium_Chart.jpg/300px-PPACA_Premium_Chart.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Percentage_of_Individuals_in_the_United_States_Without_Health_Insurance%2C_1963-2015.png/220px-Percentage_of_Individuals_in_the_United_States_Without_Health_Insurance%2C_1963-2015.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/4/4b/Barack_Obama_visiting_victims_of_2012_Aurora_shooting.jpg/220px-Barack_Obama_visiting_victims_of_2012_Aurora_shooting.jpg
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  • https://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Barack_Obama_foreign_trips.svg/220px-Barack_Obama_foreign_trips.svg.png
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  • https://upload.wikimedia.org/wikipedia/commons/thumb/7/76/Barack_Obama_and_Matteo_Renzi_October_2016%2C_1.jpg/220px-Barack_Obama_and_Matteo_Renzi_October_2016%2C_1.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/b/be/David_Cameron_and_Barack_Obama_at_the_G20_Summit_in_Toronto.jpg/220px-David_Cameron_and_Barack_Obama_at_the_G20_Summit_in_Toronto.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Barack_Obama_welcomes_Shimon_Peres_in_the_Oval_Office.jpg/220px-Barack_Obama_welcomes_Shimon_Peres_in_the_Oval_Office.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/f7/Vladimir_Putin_and_Barack_Obama_%282015-09-29%29_04.jpg/220px-Vladimir_Putin_and_Barack_Obama_%282015-09-29%29_04.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Obama_and_Biden_await_updates_on_bin_Laden.jpg/220px-Obama_and_Biden_await_updates_on_bin_Laden.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/Barack_Obama_talks_with_Benjamin_Netanyahu_%288637772147%29.jpg/220px-Barack_Obama_talks_with_Benjamin_Netanyahu_%288637772147%29.jpg
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  • https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Vladimir_Putin_and_Barack_Obama_%282015-09-29%29_01.jpg/220px-Vladimir_Putin_and_Barack_Obama_%282015-09-29%29_01.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/c/c0/Gallup_Poll-Approval_Rating-Barack_Obama.svg/220px-Gallup_Poll-Approval_Rating-Barack_Obama.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/3/3f/G8_leaders_watching_football.jpg/220px-G8_leaders_watching_football.jpg
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  • https://upload.wikimedia.org/wikipedia/commons/thumb/9/96/Obama_Macri_October_2017.jpg/220px-Obama_Macri_October_2017.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/9/9f/Job_Growth_by_U.S._President_-_v1.png/370px-Job_Growth_by_U.S._President_-_v1.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/2/21/Speaker_Icon.svg/15px-Speaker_Icon.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/5/55/President_Barack_Obama%2C_2012_portrait_crop.jpg/100px-President_Barack_Obama%2C_2012_portrait_crop.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Seal_of_the_President_of_the_United_States.svg/85px-Seal_of_the_President_of_the_United_States.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Seal_of_the_United_States_Senate.svg/80px-Seal_of_the_United_States_Senate.svg.png
  • https://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/22px-Commons-logo.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/30px-Wikinews-logo.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/25px-Wikiquote-logo.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/29px-Wikisource-logo.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/30px-Wikidata-logo.svg.png
Always set labels on inputs in forms (labelOnInput)There are 2 input(s) that are missing labels on a form.80
  • <input type="checkbox" class="vectorMenuCheckbox" aria-labelledby="p-variants-label">
  • <input type="checkbox" class="vectorMenuCheckbox" aria-labelledby="p-cactions-label">
Structure your content by using landmarks (landmarks)The page doesn't use any landmarks.0
Use headings tags within section tags to better structure your page (sections)The page doesn't use sections. You could use them to get a better structure of your content.0
Use caption and th in tables (table)The page has tables that are missing caption, please use them to give them a proper heading or summary.0

Performance advice (78)

TitleAdviceScore
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
Avoid extra requests by setting cache headers (cacheHeaders)The page has 79 request(s) that are missing a cache time. Configure a cache time so the browser doesn't need to download them every time. It will save 633.9 kB the next access.0
  • https://upload.wikimedia.org/wikipedia/en/thumb/e/e7/Cscr-featured.svg/20px-Cscr-featured.svg.png
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  • https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/President_Barack_Obama.jpg/220px-President_Barack_Obama.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Barack_Obama_signature.svg/128px-Barack_Obama_signature.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/5/55/President_Barack_Obama%2C_2012_portrait_crop.jpg/75px-President_Barack_Obama%2C_2012_portrait_crop.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Seal_of_the_President_of_the_United_States.svg/70px-Seal_of_the_President_of_the_United_States.svg.png
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  • https://upload.wikimedia.org/wikipedia/en/thumb/e/e8/Barack_Obama_Sr_Jr.jpg/150px-Barack_Obama_Sr_Jr.jpg
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  • https://upload.wikimedia.org/wikipedia/commons/thumb/c/ca/Barack_Obama_playing_basketball_with_members_of_Congress_and_Cabinet_secretaries_2.jpg/170px-Barack_Obama_playing_basketball_with_members_of_Congress_and_Cabinet_secretaries_2.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/3/3d/Obamas_at_church_on_Inauguration_Day_2013.jpg/220px-Obamas_at_church_on_Inauguration_Day_2013.jpg
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  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/BarackObamaportrait.jpg/170px-BarackObamaportrait.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/Lugar-Obama.jpg/220px-Lugar-Obama.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Barack_Obama_Iraq_2006.jpg/220px-Barack_Obama_Iraq_2006.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Flickr_Obama_Springfield_01.jpg/220px-Flickr_Obama_Springfield_01.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/a/a2/President_George_W._Bush_and_Barack_Obama_meet_in_Oval_Office.jpg/220px-President_George_W._Bush_and_Barack_Obama_meet_in_Oval_Office.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/3/33/P112912PS-0444_-_President_Barack_Obama_and_Mitt_Romney_in_the_Oval_Office_-_crop.jpg/220px-P112912PS-0444_-_President_Barack_Obama_and_Mitt_Romney_in_the_Oval_Office_-_crop.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/US_President_Barack_Obama_taking_his_Oath_of_Office_-_2009Jan20.jpg/220px-US_President_Barack_Obama_taking_his_Oath_of_Office_-_2009Jan20.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Barack_Obama_addresses_joint_session_of_Congress_2009-02-24.jpg/220px-Barack_Obama_addresses_joint_session_of_Congress_2009-02-24.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/6/63/Obama_cabinet_meeting_2009-11.jpg/220px-Obama_cabinet_meeting_2009-11.jpg
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  • https://upload.wikimedia.org/wikipedia/commons/thumb/2/25/US_Employment_Statistics.svg/300px-US_Employment_Statistics.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/6/63/Obama-venice-la.jpg/220px-Obama-venice-la.jpg
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  • https://upload.wikimedia.org/wikipedia/commons/thumb/4/4b/Barack_Obama_visiting_victims_of_2012_Aurora_shooting.jpg/220px-Barack_Obama_visiting_victims_of_2012_Aurora_shooting.jpg
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  • https://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Barack_Obama_foreign_trips.svg/220px-Barack_Obama_foreign_trips.svg.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/e/e6/Merkel_an_Obama_Presidential_Medal_of_Freedom.jpg/220px-Merkel_an_Obama_Presidential_Medal_of_Freedom.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/7/76/Barack_Obama_and_Matteo_Renzi_October_2016%2C_1.jpg/220px-Barack_Obama_and_Matteo_Renzi_October_2016%2C_1.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/b/be/David_Cameron_and_Barack_Obama_at_the_G20_Summit_in_Toronto.jpg/220px-David_Cameron_and_Barack_Obama_at_the_G20_Summit_in_Toronto.jpg
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  • https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/Barack_Obama_talks_with_Benjamin_Netanyahu_%288637772147%29.jpg/220px-Barack_Obama_talks_with_Benjamin_Netanyahu_%288637772147%29.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Handshake_between_the_President_and_Cuban_President_Ra%C3%BAl_Castro.jpg/220px-Handshake_between_the_President_and_Cuban_President_Ra%C3%BAl_Castro.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Vladimir_Putin_and_Barack_Obama_%282015-09-29%29_01.jpg/220px-Vladimir_Putin_and_Barack_Obama_%282015-09-29%29_01.jpg
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Long cache headers is good (cacheHeadersLong)The page has 4 request(s) that have a shorter cache time than 30 days (but still a cache time).96
  • https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.styles%7Cext.tmh.thumbnail.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cjquery.makeCollapsible.styles%7Cmediawiki.toc.styles%7Cskins.vector.styles.legacy%7Cwikibase.client.init&only=styles&skin=vector
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  • https://en.wikipedia.org/w/load.php?lang=en&modules=site.styles&only=styles&skin=vector
  • https://en.wikipedia.org/w/load.php?lang=en&modules=Spinner%2Cjquery%2Coojs%2Coojs-router%2Coojs-ui-core%2Coojs-ui-widgets%2Csite%7Cext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.centralautologin%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.quicksurveys.init%2Clib%7Cext.tmh.OgvJsSupport%7Cext.uls.common%2Ccompactlinks%2Cinit%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery.client%2Ccookie%2CembedPlayer%2CloadingSpinner%2CmakeCollapsible%2CmwEmbedUtil%2CtextSelection%2CtriggerQueueCallback%7Cjquery.uls.data%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Ctoc%2Cuser%2Cutil%2Cviewport%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%2Cstartup%7Cmediawiki.ui.button%2Cicon%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cmw.EmbedPlayer.loader%7Cmw.MediaWikiPlayer.loader%7Cmw.MwEmbedSupport%2CPopUpMediaTransform%7Cmw.MwEmbedSupport.style%7Cmw.PopUpMediaTransform.styles%7Cmw.TMHGalleryHook.js%7Cmw.TimedText.loader%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui.styles.indicators%7Cskins.vector.js%7Cuser.defaults&skin=vector&version=1ozc6
Total JavaScript size shouldn't be too big (javascriptSize)The total JavaScript transfer size is 297.4 kB and the uncompressed size is 1.2 MB. This is totally crazy! There is really room for improvement here. 0
Don't use private headers on static content (privateAssets)The page has 2 request(s) 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.90
  • https://en.wikipedia.org/wiki/Barack_Obama
  • https://login.wikimedia.org/wiki/Special:CentralAutoLogin/checkLoggedIn?type=script&wikiid=enwiki&proto=https

Best practice advice (81)

TitleAdviceScore
Meta description (metaDescription)The page is missing a meta description.0
Avoid Unnecessary Headers (unnecessaryHeaders)There are 3 response(s) that sets a p3p header. There are 12 response(s) that sets both a max-age and expires header. There are 101 response(s) that sets a server header. 0
  • https://en.wikipedia.org/wiki/Barack_Obama
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  • https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector
  • https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector
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  • https://en.wikipedia.org/static/images/wikimedia-button.png
  • https://en.wikipedia.org/static/images/wikimedia-button.png
  • https://en.wikipedia.org/static/images/poweredby_mediawiki_88x31.png
  • https://en.wikipedia.org/static/images/poweredby_mediawiki_88x31.png
  • https://en.wikipedia.org/w/skins/Vector/resources/skins.vector.styles/images/user-avatar.svg?b7f58
  • https://en.wikipedia.org/w/skins/Vector/resources/skins.vector.styles/images/search.svg?4d50a
  • https://en.wikipedia.org/w/extensions/WikimediaBadges/resources/images/badge-silver-star.png?70a8c
  • https://en.wikipedia.org/w/extensions/WikimediaBadges/resources/images/badge-golden-star.png?ed948
  • https://upload.wikimedia.org/wikipedia/foundation/2/20/CloseWindow19x19.png
  • https://upload.wikimedia.org/wikipedia/commons/thumb/8/85/WLE_Austria_Logo_%28no_text%29.svg/50px-WLE_Austria_Logo_%28no_text%29.svg.png
  • https://en.wikipedia.org/w/extensions/UniversalLanguageSelector/resources/images/cog-sprite.svg?c3fa1
  • https://en.wikipedia.org/w/extensions/UniversalLanguageSelector/resources/images/compact-links-trigger.svg?ebb8e
  • https://en.wikipedia.org/static/favicon/wikipedia.ico
  • https://en.wikipedia.org/static/favicon/wikipedia.ico
  • https://en.wikipedia.org/w/load.php?lang=en&modules=ext.popups.images%2Cmain&skin=vector&version=5ysgv
  • https://en.wikipedia.org/w/load.php?lang=en&modules=ext.popups.images%2Cmain&skin=vector&version=5ysgv

Privacy advice (86)

TitleAdviceScore
Use a good Content-Security-Policy header to make sure you you avoid Cross Site Scripting (XSS) attacks. (contentSecurityPolicyHeader)Set a Content-Security-Policy header to make sure you are not open for Cross Site Scripting (XSS) attacks. You can start with setting a Content-Security-Policy-Report-Only header, that will only report the violation, not stop the download.0
  • https://en.wikipedia.org/wiki/Barack_Obama
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
  • https://en.wikipedia.org/wiki/Barack_Obama

Page info

Page info
TitleBarack Obama - Wikipedia
GeneratorMediaWiki 1.35.0-wmf.31
Width1350
Height38483
DOM elements17280
Avg DOM depth13
Max DOM depth27
Iframes0
Script tags6
Local storage690.5 KB
Session storage0 b
HTML vs AMPPlain good HTML page
Resource Hints
dns-prefetch
https://login.wikimedia.org/
https://meta.wikimedia.org/
Third party
JQuery3.4.1
Google AnalyticsNo
Google Tag ManagerNo
PiwikNo
BoomerangNo
New RelicNo

Visual Metrics

Visual Metrics
First Visual Change603 ms
Speed Index664 ms
Perceptual Speed Index1.792 s
Contentful Speed Index722 ms
Visual Complete 85%710 ms
Visual Complete 95%710 ms
Visual Complete 99%1.917 s
Last Visual Change2.343 s
Visual Readiness1.740 s

Browser Metrics

Navigation Timing
backEndTime137 ms
domContentLoadedTime1.949 s
domInteractiveTime1.947 s
domainLookupTime2 ms
frontEndTime877 ms
pageDownloadTime953 ms
pageLoadTime1.968 s
redirectionTime0 ms
serverConnectionTime68 ms
serverResponseTime1.006 s
Extra timings
first-contentful-paint539 ms
first-paint539 ms
RUM Speed Index585 ms
Load Event End1.969 s
Largest Contentful Paint539 ms
Fully loaded2.326 s
User Timing marks
mwStartup525 ms
mwCentralNoticeBanner2.159 s

Largest Contentful Paint

Read more about Largest Contentful Paint.

Tag Render timeLoad timeSize
P 539 ms 0 ms 158.5 KB

Detected Cumulative Layout Shift

0.04 layout shift collected from the The Layout Instability API.

Element timings

IdURLTag Render timeLoad timeNatural widthNatural height

Server timings

namedurationdescription
cache0hit-front

Custom metrics collected through JavaScript

There are no custom configured scripts.

Extra metrics collected using scripting

namevalue

CDP Performance

namevalue
AudioHandlers0
Documents12
Frames12
JSEventListeners1955
LayoutObjects25675
MediaKeySessions0
MediaKeys0
Nodes35656
Resources92
ContextLifecycleStateObservers30
V8PerContextDatas1
WorkerGlobalScopes0
UACSSResources0
RTCPeerConnections0
ResourceFetchers12
AdSubframes0
DetachedScriptStates0
LayoutCount23
RecalcStyleCount25
LayoutDuration498
RecalcStyleDuration330
DevToolsCommandDuration415
ScriptDuration474
V8CompileDuration7
TaskDuration2680
TaskOtherDuration956
ThreadTime2
JSHeapUsedSize7624428
JSHeapTotalSize8314880
FirstMeaningfulPaint539

PageXray

How the page is built.

Summary
HTTP versionHTTP/2.0
Total requests101
Total domains4
Total transfer size1.2 MB
Total content size3.2 MB
Responses missing compression0
Requests per response code
200101

Largest assets on the page (by transfer size)

URLTypeTransfer SizeContent Size
https://en.wikipedia...wiki/Barack_Obamahtml260.0 KB1.4 MB
https://en.wikipedia...ia.org/w/load.phpjavascript226.9 KB953.4 KB
https://en.wikipedia...ia.org/w/load.phpjavascript21.9 KB67.0 KB
https://en.wikipedia...-logos/enwiki.pngimage20.3 KB20.1 KB
https://upload.wikim...n_Oval_Office.jpgimage19.9 KB19.7 KB
https://upload.wikim...y%2C_2004.svg.pngimage18.6 KB18.5 KB
https://upload.wikim..._Barack_Obama.jpgimage18.3 KB18.2 KB
https://upload.wikim...%2C_1963-2015.pngimage18.3 KB18.0 KB
https://en.wikipedia...ia.org/w/load.phpjavascript18.3 KB67.8 KB
https://upload.wikim...tatistics.svg.pngimage17.2 KB17.1 KB
https://upload.wikim...eting_2009-11.jpgimage16.9 KB16.7 KB
https://upload.wikim...hing_football.jpgimage16.9 KB16.6 KB
https://upload.wikim...secretaries_2.jpgimage16.8 KB16.6 KB
https://upload.wikim...ign_trips.svg.pngimage16.5 KB16.4 KB
https://upload.wikim...rora_shooting.jpgimage16.5 KB16.3 KB
https://upload.wikim...C3%BAl_Castro.jpgimage15.8 KB15.7 KB
https://upload.wikim...resident_-_v1.pngimage15.3 KB15.1 KB
https://upload.wikim...amiltondavis1.jpgimage15.1 KB14.9 KB
https://upload.wikim...3594694537%29.jpgimage14.9 KB14.8 KB
https://en.wikipedia...ia.org/w/load.phpjavascript14.8 KB53.5 KB

Requests and sizes per content type

ContentHeader SizeTransfer SizeContent SizeRequests
html0 b260.0 KB1.4 MB1
css0 b14.4 KB59.4 KB2
javascript0 b290.4 KB1.1 MB7
image0 b641.8 KB627.3 KB80
svg0 b8.1 KB16.9 KB10
favicon0 b1.2 KB2.7 KB1
Total0 b1.2 MB3.2 MB101

Size and requests per domain

DomainHeader SizeTransfer SizeContent SizeRequests
en.wikipedia.orgN/A596.8 KB2.6 MB22
upload.wikimedia.orgN/A617.7 KB603.8 KB77
login.wikimedia.orgN/A444 B236 B1
meta.wikimedia.orgN/A923 B1.7 KB1

Expires, last modified and cookies stats

typeminmedianmax
Expires0 seconds0 seconds1 year
Last modified24 hours1 year7 years
Cookies000

Requests loaded after onLoad event

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript18.3 KB1
image2.7 KB2
font0 b0
svg1.1 KB2
favicon1.2 KB1
Total23.3 KB6

Requests loaded after onContentLoad

Includes requests done after onLoad.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript18.3 KB1
image2.7 KB2
font0 b0
svg1.1 KB2
favicon1.2 KB1
Total23.3 KB6

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 358
Max Potential First Input Delay 144
Long Tasks before First Paint1249
Long Tasks before First Contentful Paint1249
Long Tasks after Load Event End3260
Total Long Tasks141256

Individual Long Tasks

namestartTimedurationcontainerIdcontainerNamecontainerSrccontainerType
unknown260249window
unknown79452window
self87659window
self93857window
self109554window
unknown116255window
self1229144window
unknown138969window
self1482102window
unknown158463window
unknown178294window
self199895window
self217065window
self2350100window

CPU time spent

Calculated using Tracium.

Categories (ms)
parseHTML118
styleLayout834
paintCompositeRender361
scriptParseCompile7
scriptEvaluation475
garbageCollection19
other412
Events (ms)
Layout500
RunTask407
V8.Execute349
UpdateLayoutTree334
UpdateLayerTree299
ParseHTML116
V8.HandleInterrupts100
Paint42
V8.GCScavenger18
CompositeLayers11

Time spent per request

URLCPU time (ms)
https://en.wikipedia.org/w/load.php?lang=en&modules=Spinner%2Cjquery%2Coojs%2Coojs-router%2Coojs-ui-core%2Coojs-ui-widgets%2Csite%7Cext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.centralautologin%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.quicksurveys.init%2Clib%7Cext.tmh.OgvJsSupport%7Cext.uls.common%2Ccompactlinks%2Cinit%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery.client%2Ccookie%2CembedPlayer%2CloadingSpinner%2CmakeCollapsible%2CmwEmbedUtil%2CtextSelection%2CtriggerQueueCallback%7Cjquery.uls.data%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Ctoc%2Cuser%2Cutil%2Cviewport%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%2Cstartup%7Cmediawiki.ui.button%2Cicon%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cmw.EmbedPlayer.loader%7Cmw.MediaWikiPlayer.loader%7Cmw.MwEmbedSupport%2CPopUpMediaTransform%7Cmw.MwEmbedSupport.style%7Cmw.PopUpMediaTransform.styles%7Cmw.TMHGalleryHook.js%7Cmw.TimedText.loader%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui.styles.indicators%7Cskins.vector.js%7Cuser.defaults&skin=vector&version=1ozc6322
https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector285

CPU time spent

Tool/domainTime (ms)
en.wikipedia.org607.4

Third party

Third party requests categorised by Third party web.

First party requests and sizes per content type

Calculated using (.*wikipedia.*||.*wikimedia.*) (use --firstParty to configure).

ContentHeader SizeTransfer SizeContent SizeRequests
html0 b260.0 KB1.4 MB1
css0 b14.4 KB59.4 KB2
javascript0 b290.4 KB1.1 MB7
image0 b641.8 KB627.3 KB80
font0 b0 b0 b0
svg0 b8.1 KB16.9 KB10
favicon0 b1.2 KB2.7 KB1
TotalN/A1.2 MB3.2 MB101

Third party requests and sizes per content type

ContentHeader SizeTransfer SizeContent SizeRequests
html0 b0 b0 b0
css0 b0 b0 b0
javascript0 b0 b0 b0
image0 b0 b0 b0
font0 b0 b0 b0
TotalN/AN/AN/A