Tested 2026-03-28 00:45:53 using Chrome 146.0.7680.80 (runtime settings).
| Metric | Value |
|---|---|
| Page metrics | |
| Performance score | 67 |
| Total page size | 2.0 MB |
| Requests | 107 |
| Timing metrics | |
| TTFB | 930 ms |
| First Paint | 2.568 s |
| Fully Loaded | 8.533 s |
| Google Web Vitals | |
| TTFB | 930 ms |
| First Contentful Paint (FCP) | 2.568 s |
| Largest Contentful Paint (LCP) | 2.568 s |
| Cumulative Layout Shift (CLS) | 0.00 |
| 1.624 s | |
| Total Blocking Time | 264 ms |
| Max Potential FID | 184 ms |
| CPU metrics | |
| CPU long tasks | 6 |
| CPU last long task happens at | 3.924 s |
| Visual Metrics | |
| First Visual Change | 2.566 s |
| Speed Index | 2.657 s |
| Visual Complete 85% | 2.566 s |
| Visual Complete 99% | 3.933 s |
| Last Visual Change | 4.066 s |
Use--filmstrip.showAll to show all filmstrips.
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.
| 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...iki/United_States has a header content-security-policy that is 1388 characters long. https://en.wikipedia...iki/United_States has a header content-security-policy-report-only that is 1397 characters long. https://en.wikipedia...ia.org/w/load.php has a header sourcemap that is 1428 characters long. https://en.wikipedia...alAutoLogin/start has a header content-security-policy that is 1388 characters long. https://en.wikipedia...alAutoLogin/start has a header content-security-policy-report-only that is 1397 characters long. https://auth.wikimed...gin/checkLoggedIn has a header content-security-policy that is 1388 characters long. https://auth.wikimed...gin/checkLoggedIn has a header content-security-policy-report-only that is 1397 characters long. | 93 |
| Description: Do not send response headers that are too long. | ||
| Offenders: | ||
| Avoid unnecessary headers (unnecessaryHeaders) | There are 24 responses that sets both a max-age and expires header. There are 107 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: | ||
| 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: | ||
| Page info | |
|---|---|
| Title | United States - Wikipedia |
| Generator | MediaWiki 1.46.0-wmf.21 |
| Width | 1904 |
| Height | 61700 |
| DOM elements | 19502 |
| Avg DOM depth | 15 |
| Max DOM depth | 32 |
| Iframes | 0 |
| Script tags | 5 |
| Local storage | 1.0 MB |
| Session storage | 0 b |
| Network Information API | 3g |
| Resource Hints |
|---|
| dns-prefetch |
| https://meta.wikimedia.org/ |
| https://en.wikipedia.org/wiki/auth.wikimedia.org |
| preconnect |
| https://upload.wikimedia.org/ |
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 |
| HSTS | 100 | Security |
| Visual Metrics | |
|---|---|
| First Visual Change | 2.566 s |
| Speed Index | 2.657 s |
| Largest Image | 2.566 s |
| Heading | 2.566 s |
| LargestContentfulPaint | 3.800 s |
| Last Meaningful Paint | 3.800 s |
| Largest Contentful Paint | 3.800 s |
| Visual Complete 85% | 2.566 s |
| Visual Complete 95% | 3.800 s |
| Visual Complete 99% | 3.933 s |
| Last Visual Change | 4.066 s |
| Visual Readiness | 1.500 s |
| Navigation Timing | |
|---|---|
| backEndTime | 930 ms |
| domContentLoadedTime | 2.579 s |
| domInteractiveTime | 2.579 s |
| domainLookupTime | 104 ms |
| frontEndTime | 2.393 s |
| pageDownloadTime | 779 ms |
| pageLoadTime | 4.101 s |
| redirectionTime | 0 ms |
| serverConnectionTime | 200 ms |
| serverResponseTime | 1.398 s |
| Google Web Vitals | |
|---|---|
| Time to first byte (TTFB) | 930 ms |
| First Contentful Paint (FCP) | 2.568 s |
| Largest Contentful Paint (LCP) | 2.568 s |
| Cumulative Layout Shift (CLS) | 0.00 |
| Interaction to next paint (INP) | 1.624 s |
| Total Blocking Time (TBT) | 264 ms |
| First Contentful Paint info | |
|---|---|
| Elements that needed recalculate style before FCP | 18236 |
| Time spent in recalculate style before FCP | 255.955 ms |
| Extra timings | |
|---|---|
| TTFB | 930 ms |
| First Paint | 2.568 s |
| Load Event End | 4.102 s |
| Fully loaded | 8.533 s |
| User Timing marks | |
|---|---|
| mwStartup | 1.507 s |
When in time the page main content is rendered (collected using the Largest Contentful Paint API). Read more about Largest Contentful Paint.
| Element type | P |
| Element/tag | <p></p> |
| Render time | 2.568 s |
| Element render delay | 1.638 s |
| TTFB | 930 ms |
| Resource delay | 0 ms |
| Resource load duration | 0 ms |
| Elements that needed recalculate style before LCP | 18236 |
| Time spent in recalculate style before LCP | 255.955 ms |
| Load time | 0 ms |
| Size (width*height) | 303536 |
| 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)> | |
0.00348 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 |
|---|---|
| 0.00230 | <tr></tr>,<tr class="mergedbottomrow"></tr>,<div class="mw-indicators"></div> |
| body > div:eq(2) > div > div:eq(2) > main#content > div#bodyContent > div#mw-content-text > div:eq(1) > table:eq(0) > tbody > tr:eq(5),body > div:eq(2) > div > div:eq(2) > main#content > div#bodyContent > div#mw-content-text > div:eq(1) > table:eq(0) > tbody > tr:eq(6),body > div:eq(2) > div > div:eq(2) > main#content > div#bodyContent > div:eq(0) > div:eq(0) | |
| 0.00100 | <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-custom-font-size vector-menu" id="skin-client-prefs-vector-feature-custom-font-size"></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>,<a href="https://wikimediafoundation.org/wikipedia25/wikipedia-mascot/?utm_campaign=wpam&utm_source=wpam&utm_medium=wpamen" target="_blank"></a>,<label class="cdx-label cdx-radio__label" for="skin-client-pref-wp25eastereggs-enable-value-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,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,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-wp25eastereggs-enable > div:eq(1) > ul > li > div > span#wp25eastereggs-enable-beta-notice > a,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-wp25eastereggs-enable > div:eq(1) > ul > li > div > form > div:eq(1) > label | |
| 0.00017 | |
| 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-History > 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-Geography > 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-Government_and_politics > 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-Economy > 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-Demographics > 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 (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 1.624 s.
| Event type | pointerenter |
| Element type | |
| Element class name | |
| Event target | |
| Load state when the event happened | loading |
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 |
|---|---|---|---|---|
| 394.4 ms | 1.519 s | 0.3 ms | 0.2 ms | 0.1 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 | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 191.9 ms | 273.6 ms | 57.3 ms | 57.2 ms | 0.1 ms |
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.echo.centralauth%7Cext.eventLogging%2Cimagemap%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CmakeCollapsible%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.cx.SiteMapper%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.vector-2022%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=ejvp4 | ||||
Invoker: TimerHandler:setTimeout | ||||
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.echo.centralauth%7Cext.eventLogging%2Cimagemap%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CmakeCollapsible%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.cx.SiteMapper%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.vector-2022%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=ejvp4 | ||||
Forced Style And Layout Duration: 19 ms Invoker: TimerHandler:setTimeout | ||||
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.echo.centralauth%7Cext.eventLogging%2Cimagemap%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CmakeCollapsible%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.cx.SiteMapper%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.vector-2022%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=ejvp4 | ||||
Invoker: TimerHandler:setTimeout | ||||
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.echo.centralauth%7Cext.eventLogging%2Cimagemap%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CmakeCollapsible%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.cx.SiteMapper%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.vector-2022%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=ejvp4 | ||||
Invoker: TimerHandler:setTimeout | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 66 ms | 21.1 ms | 113.1 ms | 99.6 ms | 13.5 ms |
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022 | ||||
Invoker: FrameRequestCallback | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 47.2 ms | 48.8 ms | 78.5 ms | 68.1 ms | 10.4 ms |
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.echo.centralauth%7Cext.eventLogging%2Cimagemap%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CmakeCollapsible%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.cx.SiteMapper%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.vector-2022%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=ejvp4 | ||||
Invoker: TimerHandler:setTimeout | ||||
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.echo.centralauth%7Cext.eventLogging%2Cimagemap%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CmakeCollapsible%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.cx.SiteMapper%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.vector-2022%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=ejvp4 | ||||
Forced Style And Layout Duration: 6 ms Invoker: IntersectionObserverCallback | ||||
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.echo.centralauth%7Cext.eventLogging%2Cimagemap%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CmakeCollapsible%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.cx.SiteMapper%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.vector-2022%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=ejvp4 | ||||
Invoker: TimerHandler:setTimeout | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 38.2 ms | 50.5 ms | 40 ms | 19 ms | 21 ms |
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022 | ||||
Invoker: IdleRequestCallback | ||||
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022 | ||||
Invoker: FrameRequestCallback | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 21.1 ms | 13.3 ms | 65.6 ms | 49.8 ms | 15.8 ms |
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022 | ||||
Invoker: IdleRequestCallback | ||||
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022 | ||||
Forced Style And Layout Duration: 17 ms Invoker: FrameRequestCallback | ||||
| name | duration | description |
|---|---|---|
| cache | 0 | miss |
| host | 0 | cp3070 |
| WMF-Uniq | 0 | we-1-8-account-creation-form-v1=treatment; |
There are no custom configured scripts.
There are no custom extra metrics from scripting.
| name | value |
|---|---|
| AudioHandlers | 0 |
| AudioWorkletProcessors | 0 |
| Documents | 35 |
| Frames | 34 |
| JSEventListeners | 3690 |
| LayoutObjects | 33633 |
| MediaKeySessions | 0 |
| MediaKeys | 0 |
| Nodes | 41497 |
| Resources | 119 |
| ContextLifecycleStateObservers | 55 |
| V8PerContextDatas | 1 |
| WorkerGlobalScopes | 0 |
| UACSSResources | 9 |
| RTCPeerConnections | 0 |
| ResourceFetchers | 35 |
| AdSubframes | 0 |
| DetachedScriptStates | 2 |
| ArrayBufferContents | 0 |
| LayoutCount | 32 |
| RecalcStyleCount | 54 |
| LayoutDuration | 404 |
| RecalcStyleDuration | 443 |
| DevToolsCommandDuration | 131 |
| ScriptDuration | 404 |
| V8CompileDuration | 3 |
| TaskDuration | 2135 |
| TaskOtherDuration | 751 |
| ThreadTime | 3 |
| ProcessTime | 5 |
| JSHeapUsedSize | 10884488 |
| JSHeapTotalSize | 16793600 |
| FirstMeaningfulPaint | 2566 |
| Name | Display Time | X | Y | Width | Height |
|---|---|---|---|---|---|
| LargestImage (250px-USA_orthographic.svg.png) | 2.566 s | 1146 | 570 | 250 | 250 |
| <img alt="Orthographic map of the U.S. in North America" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/dc/USA_orthographic.svg/250px-USA_orthographic.svg.png" decoding="async" width="250" height="250" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/dc/USA_orthographic.svg/500px-USA_orthographic.svg.png 1.5x" data-file-width="551" data-file-height="551"> | |||||
| Heading | 2.566 s | 478 | 90 | 796 | 40 |
| <h1 id="firstHeading" class="firstHeading mw-first-heading"></h1> | |||||
| LargestContentfulPaint | 3.800 s | 478 | 500 | 948 | 598 |
| <p></p> | |||||
How the page is built.
| Summary | |
|---|---|
| HTTP version | HTTP/2.0 |
| Total requests | 107 |
| Total domains | 3 |
| Total transfer size | 2.0 MB |
| Total content size | 4.3 MB |
| Responses missing compression | 13 |
| Number of cookies | 21 |
| Third party cookies | 0 |
| Requests per response code | |
|---|---|
| 200 | 105 |
| 202 | 1 |
| 302 | 1 |
| URL | Type | Transfer Size | Content Size |
|---|---|---|---|
| https://en.wikipedia...iki/United_States | html | 308.1 KB | 1.6 MB |
| https://en.wikipedia...ia.org/w/load.php | javascript | 230.3 KB | 917.1 KB |
| https://upload.wikim...itory_names_2.png | image | 213.8 KB | 212.8 KB |
| https://upload.wikim..._Acquisitions.png | image | 88.5 KB | 87.3 KB |
| https://upload.wikim...paintedrelief.png | image | 46.8 KB | 45.8 KB |
| https://upload.wikim...e_Types_US_50.png | image | 45.4 KB | 44.4 KB |
| https://en.wikipedia...ons/enwiki-25.svg | svg | 44.1 KB | 113.2 KB |
| https://upload.wikim...ember%2C_2025.jpg | image | 42.8 KB | 41.8 KB |
| https://upload.wikim...28zoom%29.svg.png | image | 40.4 KB | 39.4 KB |
| https://upload.wikim...ce_map-en.svg.png | image | 32.7 KB | 31.5 KB |
| https://upload.wikim...%28cropped%29.jpg | image | 28.8 KB | 27.8 KB |
| https://upload.wikim...n_-_panoramio.jpg | image | 28.7 KB | 27.5 KB |
| https://upload.wikim...-45intoI-10_2.jpg | image | 28.0 KB | 27.1 KB |
| https://upload.wikim...he_US_EEZ.svg.png | image | 26.2 KB | 25.1 KB |
| https://upload.wikim...omcast_Philly.JPG | image | 25.4 KB | 24.5 KB |
| https://en.wikipedia...ia.org/w/load.php | javascript | 25.4 KB | 120.4 KB |
| https://en.wikipedia...ia.org/w/load.php | css | 24.5 KB | 186.0 KB |
| https://upload.wikim...%28cropped%29.jpg | image | 23.6 KB | 22.6 KB |
| https://upload.wikim...Prodigium-266.jpg | image | 23.0 KB | 22.0 KB |
| https://upload.wikim...x4_cropped%29.jpg | image | 22.9 KB | 21.9 KB |
| Content | Header Size | Transfer Size | Content Size | Requests |
|---|---|---|---|---|
| html | 0 b | 308.1 KB | 1.6 MB | 1 |
| css | 0 b | 27.7 KB | 192.8 KB | 2 |
| javascript | 0 b | 316.2 KB | 1.2 MB | 7 |
| image | 0 b | 1.3 MB | 1.2 MB | 73 |
| svg | 0 b | 76.9 KB | 145.8 KB | 21 |
| favicon | 0 b | 1.9 KB | 2.7 KB | 1 |
| plain | 0 b | 955 B | 0 b | 1 |
| Total | 0 b | 2.0 MB | 4.3 MB | 106 |
| Domain | Total download time | Transfer Size | Content Size | Requests |
|---|---|---|---|---|
| en.wikipedia.org | 9.303 s | 729.0 KB | 3.2 MB | 32 |
| upload.wikimedia.org | 46.065 s | 1.3 MB | 1.2 MB | 74 |
| auth.wikimedia.org | 305 ms | 1.4 KB | 254 B | 1 |
| type | min | median | max |
|---|---|---|---|
| Expires | 0 seconds | 0 seconds | 1 year |
| Last modified | 4 minutes | 25 weeks | 12 years |
No console log messages.
Included requests done after load event end.
| Content | Transfer Size | Requests |
|---|---|---|
| html | 0 b | 0 |
| css | 0 b | 0 |
| javascript | 0 b | 0 |
| image | 0 b | 0 |
| font | 0 b | 0 |
| favicon | 1.9 KB | 1 |
| plain | 955 B | 1 |
| Total | 2.8 KB | 2 |
Includes requests done after DOM content loaded.
| Content | Transfer Size | Requests |
|---|---|---|
| html | 0 b | 0 |
| css | 0 b | 0 |
| javascript | 29.7 KB | 3 |
| image | 6.4 KB | 4 |
| font | 0 b | 0 |
| svg | 12.0 KB | 10 |
| favicon | 1.9 KB | 1 |
| plain | 955 B | 1 |
| Total | 50.9 KB | 20 |
Render blocking information directly from Chrome.
| Blocking | In body parser blocking | Potentially blocking |
|---|---|---|
| 2 | 0 | 1 |
| URL | Type |
|---|---|
| https://en.wikipedia...ia.org/w/load.php | non_blocking |
| https://en.wikipedia...ia.org/w/load.php | non_blocking |
| https://en.wikipedia...ia.org/w/load.php | blocking |
| https://en.wikipedia...ia.org/w/load.php | potentially_blocking |
| https://en.wikipedia...ia.org/w/load.php | non_blocking |
| https://en.wikipedia...ia.org/w/load.php | non_blocking |
| https://en.wikipedia...ia.org/w/load.php | blocking |
| https://en.wikipedia...ia.org/w/load.php | non_blocking |
| https://auth.wikimed...gin/checkLoggedIn | non_blocking |
| https://en.wikipedia...alAutoLogin/start | non_blocking |
Download the Chrome trace log and drag and drop it into Developer Tools / Performance in Chrome.
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 | 264 | |
| Max Potential First Input Delay | 184 | |
| Long Tasks before First Paint | 1 | 486 |
| Long Tasks before First Contentful Paint | 1 | 486 |
| Long Tasks before Largest Contentful Paint | 1 | 486 |
| Long Tasks after Load Event End | 0 | 0 |
| Total Long Tasks | 6 | 1000 |
CPU last long task happened at 3.924 s
| name | startTime | duration | containerId | containerName | containerSrc | containerType |
|---|---|---|---|---|---|---|
| unknown | 2014 | 486 | window | |||
| self | 3361 | 69 | window | |||
| self | 3501 | 184 | window | |||
| unknown | 3704 | 63 | window | |||
| self | 3816 | 82 | window | |||
| self | 3924 | 116 | window |
Calculated using Tracium.
| Categories (ms) | |
|---|---|
| parseHTML | 84 |
| styleLayout | 854 |
| paintCompositeRender | 67 |
| scriptParseCompile | 3 |
| scriptEvaluation | 409 |
| garbageCollection | 27 |
| other | 607 |
| Events (ms) | |
|---|---|
| UpdateLayoutTree | 443 |
| Layout | 406 |
| FunctionCall | 361 |
| RunTask | 275 |
| PrePaint | 254 |
| ParseHTML | 80 |
| Paint | 56 |
| Layerize | 16 |
| DocumentLoader::BodyLoadingFinished | 16 |
| V8.HandleInterrupts | 14 |
| v8.run | 13 |
| V8.GC_MC_MARK_EMBEDDER_TRACING | 12 |
| DecodedDataDocumentParser::AppendBytes | 12 |
| RunMicrotasks | 11 |
| CpuProfiler::StartProfiling | 11 |
| URL | CPU time (ms) |
|---|---|
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022 | 429 |
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.cx.uls.quick.actions%7Cext.echo.centralauth%7Cext.eventLogging%2Cimagemap%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%2Cwp25EasterEggs%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.scribunto.logs%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CmakeCollapsible%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.cx.SiteMapper%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.vector-2022%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=ejvp4 | 299 |

afterPageCompleteCheck.jpg

layoutShift.jpg

largestContentfulPaint.jpg