Run 2 for https://en.wikipedia.org/wiki/Main

Tested 2020-05-20 08:48:11 using Chrome 83.0.4103.61. 3 runs and connectivity native.

Summary

Metric	Value
Performance score	78
Total page size	375.8 KB
Requests	37
TTFB	133 ms
Fully Loaded	860 ms
First Visual Change	435 ms
FCP	420 ms
LCP	420 ms
CLS	0.0379802624671916
Total Blocking Time	63 ms
Max Potential FID	105 ms
CPU long tasks	3
Speed Index	436 ms
Visual Complete 85%	435 ms
Visual Complete 99%	468 ms
Last Visual Change	869 ms

Download video Download timeline

Waterfall

Download HAR

Video

Download video

Filmstrip

Use--filmstrip.showAll to show all filmstrips.

0 s

0.3 sDOM Content Loaded Time 223 msCPU Long Task duration 108 ms

0.4 smwStartup 393 ms

0.5 sFirst Contentful Paint 420 msLCP <P> 420 msFirst Visual Change 435 msVisual Complete 85% 435 msVisual Complete 95% 468 msVisual Complete 99% 468 ms

0.6 sCPU Long Task duration 58 msPage Load Time 525 ms

0.7 sCPU Long Task duration 105 ms

0.9 smwCentralNoticeBanner 809 msFully Loaded 860 msLast Visual Change 869 ms

Coach

The coach helps you find performance problems on your web page using web performance best practice rules. And gives you advice on accessibility, privacy and best practices.

Coach score

Total score 80
Performance score 78
Privacy score 86
Accessibility score 78
Best practice score 83

Accessibility advice (78)

Title	Advice	Score
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.	80
mp-upper mp-upper

Performance advice (78)

Title	Advice	Score
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 21 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 110.8 kB the next access.	0
https://upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Priyanka_Chopra_2003_%28cropped%29.jpg/120px-Priyanka_Chopra_2003_%28cropped%29.jpg https://upload.wikimedia.org/wikipedia/en/thumb/6/6e/Coelleira_wrecked_on_the_Clubb%2C_Ve_Skerries_post_salvage_attempt.jpg/150px-Coelleira_wrecked_on_the_Clubb%2C_Ve_Skerries_post_salvage_attempt.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/8/82/Iranian_Velayat-90_Naval_Exercise_by_IRIN_%286%29.jpg/160px-Iranian_Velayat-90_Naval_Exercise_by_IRIN_%286%29.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/OrteliusWorldMap.jpeg/170px-OrteliusWorldMap.jpeg https://upload.wikimedia.org/wikipedia/commons/thumb/5/54/RUS-2016-Aerial-SPB-St_Michael%27s_Castle_02.jpg/400px-RUS-2016-Aerial-SPB-St_Michael%27s_Castle_02.jpg https://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/31px-Commons-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/3/3d/Mediawiki-logo.png/35px-Mediawiki-logo.png https://upload.wikimedia.org/wikipedia/commons/thumb/7/75/Wikimedia_Community_Logo.svg/35px-Wikimedia_Community_Logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikibooks-logo.svg/35px-Wikibooks-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/47px-Wikidata-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/51px-Wikinews-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/35px-Wikiquote-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/35px-Wikisource-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Wikispecies-logo.svg/35px-Wikispecies-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Wikiversity_logo_2017.svg/41px-Wikiversity_logo_2017.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Wikivoyage-Logo-v3-icon.svg/35px-Wikivoyage-Logo-v3-icon.svg.png https://upload.wikimedia.org/wikipedia/en/thumb/0/06/Wiktionary-logo-v2.svg/35px-Wiktionary-logo-v2.svg.png https://login.wikimedia.org/wiki/Special:CentralAutoLogin/checkLoggedIn?type=script&wikiid=enwiki&proto=https https://meta.wikimedia.org/w/index.php?title=Special:BannerLoader&campaign=wle+2020+se&banner=wle_2020_se&uselang=en&debug=false 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
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.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cskins.vector.styles.legacy&only=styles&skin=vector 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=site.styles&only=styles&skin=vector 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.cx.eventlogging.campaigns%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2CtextSelection%7Cjquery.uls.data%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%2Cstartup%7Cmediawiki.ui.button%2Cicon%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.js%7Cuser.defaults&skin=vector&version=1q0ey
Total JavaScript size shouldn't be too big (javascriptSize)	The total JavaScript transfer size is 214.1 kB and the uncompressed size is 749.5 kB. This is quite large.	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/Main_Page https://login.wikimedia.org/wiki/Special:CentralAutoLogin/checkLoggedIn?type=script&wikiid=enwiki&proto=https

Best practice advice (83)

Title	Advice	Score
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 11 response(s) that sets both a max-age and expires header. There are 37 response(s) that sets a server header.	49
https://en.wikipedia.org/wiki/Main_Page https://en.wikipedia.org/wiki/Main_Page https://en.wikipedia.org/w/load.php?lang=en&modules=ext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cskins.vector.styles.legacy&only=styles&skin=vector https://en.wikipedia.org/w/load.php?lang=en&modules=ext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cskins.vector.styles.legacy&only=styles&skin=vector 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 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=site.styles&only=styles&skin=vector https://upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Priyanka_Chopra_2003_%28cropped%29.jpg/120px-Priyanka_Chopra_2003_%28cropped%29.jpg https://upload.wikimedia.org/wikipedia/en/thumb/6/6e/Coelleira_wrecked_on_the_Clubb%2C_Ve_Skerries_post_salvage_attempt.jpg/150px-Coelleira_wrecked_on_the_Clubb%2C_Ve_Skerries_post_salvage_attempt.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/8/82/Iranian_Velayat-90_Naval_Exercise_by_IRIN_%286%29.jpg/160px-Iranian_Velayat-90_Naval_Exercise_by_IRIN_%286%29.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/OrteliusWorldMap.jpeg/170px-OrteliusWorldMap.jpeg https://upload.wikimedia.org/wikipedia/commons/thumb/5/54/RUS-2016-Aerial-SPB-St_Michael%27s_Castle_02.jpg/400px-RUS-2016-Aerial-SPB-St_Michael%27s_Castle_02.jpg https://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/31px-Commons-logo.svg.png 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/static/images/project-logos/enwiki.png https://en.wikipedia.org/static/images/project-logos/enwiki.png https://en.wikipedia.org/w/skins/Vector/resources/skins.vector.styles/images/bullet-icon.svg?d4515 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://upload.wikimedia.org/wikipedia/commons/thumb/3/3d/Mediawiki-logo.png/35px-Mediawiki-logo.png https://upload.wikimedia.org/wikipedia/commons/thumb/7/75/Wikimedia_Community_Logo.svg/35px-Wikimedia_Community_Logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikibooks-logo.svg/35px-Wikibooks-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/47px-Wikidata-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/51px-Wikinews-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/35px-Wikiquote-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/35px-Wikisource-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Wikispecies-logo.svg/35px-Wikispecies-logo.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Wikiversity_logo_2017.svg/41px-Wikiversity_logo_2017.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Wikivoyage-Logo-v3-icon.svg/35px-Wikivoyage-Logo-v3-icon.svg.png https://upload.wikimedia.org/wikipedia/en/thumb/0/06/Wiktionary-logo-v2.svg/35px-Wiktionary-logo-v2.svg.png https://en.wikipedia.org/w/load.php?lang=en&modules=ext.gadget.ReferenceTooltips%2Ccharinsert%2Cextra-toolbar-buttons%2CrefToolbar%2Cswitcher&skin=vector&version=1l114 https://en.wikipedia.org/w/load.php?lang=en&modules=ext.gadget.ReferenceTooltips%2Ccharinsert%2Cextra-toolbar-buttons%2CrefToolbar%2Cswitcher&skin=vector&version=1l114 https://en.wikipedia.org/w/load.php?lang=en&modules=ext.visualEditor.core.utils.parsing%7Cext.visualEditor.desktopArticleTarget.init%7Cext.visualEditor.progressBarWidget%2CsupportCheck%2CtargetLoader%2CtempWikitextEditorWidget%2Ctrack%2Cve&skin=vector&version=4xoqy https://en.wikipedia.org/w/load.php?lang=en&modules=ext.visualEditor.core.utils.parsing%7Cext.visualEditor.desktopArticleTarget.init%7Cext.visualEditor.progressBarWidget%2CsupportCheck%2CtargetLoader%2CtempWikitextEditorWidget%2Ctrack%2Cve&skin=vector&version=4xoqy 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.cx.eventlogging.campaigns%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2CtextSelection%7Cjquery.uls.data%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%2Cstartup%7Cmediawiki.ui.button%2Cicon%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.js%7Cuser.defaults&skin=vector&version=1q0ey 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.cx.eventlogging.campaigns%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2CtextSelection%7Cjquery.uls.data%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%2Cstartup%7Cmediawiki.ui.button%2Cicon%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.js%7Cuser.defaults&skin=vector&version=1q0ey https://login.wikimedia.org/wiki/Special:CentralAutoLogin/checkLoggedIn?type=script&wikiid=enwiki&proto=https https://login.wikimedia.org/wiki/Special:CentralAutoLogin/checkLoggedIn?type=script&wikiid=enwiki&proto=https https://meta.wikimedia.org/w/index.php?title=Special:BannerLoader&campaign=wle+2020+se&banner=wle_2020_se&uselang=en&debug=false https://meta.wikimedia.org/w/index.php?title=Special:BannerLoader&campaign=wle+2020+se&banner=wle_2020_se&uselang=en&debug=false https://en.wikipedia.org/static/favicon/wikipedia.ico https://en.wikipedia.org/static/favicon/wikipedia.ico https://en.wikipedia.org/w/extensions/UniversalLanguageSelector/resources/images/cog-sprite.svg?c3fa1 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/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)

Title	Advice	Score
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/Main_Page
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/Main_Page

Page info

Page info
Title	Wikipedia, the free encyclopedia
Generator	MediaWiki 1.35.0-wmf.31
Width	1350
Height	2405
DOM elements	1023
Avg DOM depth	11
Max DOM depth	18
Iframes	0
Script tags	6
Local storage	530.2 KB
Session storage	0 b
HTML vs AMP	Plain good HTML page

Resource Hints
dns-prefetch
https://login.wikimedia.org/
https://meta.wikimedia.org/

Third party
JQuery	3.4.1
Google Analytics	No
Google Tag Manager	No
Piwik	No
Boomerang	No
New Relic	No

Visual Metrics

Visual Metrics
First Visual Change	435 ms
Speed Index	436 ms
Perceptual Speed Index	715 ms
Contentful Speed Index	437 ms
Visual Complete 85%	435 ms
Visual Complete 95%	468 ms
Visual Complete 99%	468 ms
Last Visual Change	869 ms
Visual Readiness	434 ms

Browser Metrics

Navigation Timing
backEndTime	133 ms
domContentLoadedTime	223 ms
domInteractiveTime	223 ms
domainLookupTime	0 ms
frontEndTime	388 ms
pageDownloadTime	4 ms
pageLoadTime	525 ms
redirectionTime	0 ms
serverConnectionTime	65 ms
serverResponseTime	57 ms

Extra timings
first-contentful-paint	420 ms
first-paint	420 ms
RUM Speed Index	428 ms
Load Event End	525 ms
Largest Contentful Paint	420 ms
Fully loaded	860 ms

User Timing marks
mwStartup	393 ms
mwCentralNoticeBanner	809 ms

Largest Contentful Paint

Read more about Largest Contentful Paint.

Tag	Render time	Load time	Size
P	420 ms	0 ms	175.8 KB

Detected Cumulative Layout Shift

0.04 layout shift collected from the The Layout Instability API.

Element timings

Id	URL	Tag	Render time	Load time	Natural width	Natural height

Server timings

name	duration	description
cache	0	hit-front

Custom metrics collected through JavaScript

There are no custom configured scripts.

Extra metrics collected using scripting

name	value

CDP Performance

name	value
AudioHandlers	0
Documents	5
Frames	5
JSEventListeners	31
LayoutObjects	1858
MediaKeySessions	0
MediaKeys	0
Nodes	2234
Resources	26
ContextLifecycleStateObservers	16
V8PerContextDatas	1
WorkerGlobalScopes	0
UACSSResources	0
RTCPeerConnections	0
ResourceFetchers	5
AdSubframes	0
DetachedScriptStates	0
LayoutCount	12
RecalcStyleCount	12
LayoutDuration	102
RecalcStyleDuration	46
DevToolsCommandDuration	94
ScriptDuration	336
V8CompileDuration	6
TaskDuration	825
TaskOtherDuration	241
ThreadTime	1
JSHeapUsedSize	5212044
JSHeapTotalSize	6479872
FirstMeaningfulPaint	420

PageXray

How the page is built.

Summary
HTTP version	HTTP/2.0
Total requests	37
Total domains	4
Total transfer size	375.8 KB
Total content size	992.0 KB
Responses missing compression	0

Requests per response code
200	37

Largest assets on the page (by transfer size)

URL	Type	Transfer Size	Content Size
https://en.wikipedia...ia.org/w/load.php	javascript	145.6 KB	516.7 KB
https://upload.wikim...27s_Castle_02.jpg	image	57.6 KB	57.4 KB
https://en.wikipedia...ia.org/w/load.php	javascript	21.9 KB	67.0 KB
https://en.wikipedia...-logos/enwiki.png	image	20.3 KB	20.1 KB
https://en.wikipedia.org/wiki/Main_Page	html	19.3 KB	75.0 KB
https://en.wikipedia...ia.org/w/load.php	javascript	18.3 KB	67.8 KB
https://en.wikipedia...ia.org/w/load.php	javascript	14.8 KB	53.5 KB
https://upload.wikim...liusWorldMap.jpeg	image	11.7 KB	11.5 KB
https://en.wikipedia...ia.org/w/load.php	css	8.4 KB	35.3 KB
https://upload.wikim...lvage_attempt.jpg	image	7.6 KB	7.4 KB
https://en.wikipedia...ia.org/w/load.php	javascript	7.1 KB	25.1 KB
https://upload.wikim...%28cropped%29.jpg	image	6.0 KB	5.6 KB
https://en.wikipedia...ia.org/w/load.php	css	4.8 KB	18.0 KB
https://upload.wikim..._IRIN_%286%29.jpg	image	3.7 KB	3.5 KB
https://en.wikipedia...imedia-button.png	image	2.5 KB	2.4 KB
https://upload.wikim...news-logo.svg.png	image	2.5 KB	2.4 KB
https://upload.wikim...ediawiki-logo.png	image	2.5 KB	2.3 KB
https://upload.wikim...cies-logo.svg.png	image	2.4 KB	2.3 KB
https://en.wikipedia...diawiki_88x31.png	image	1.7 KB	1.5 KB
https://upload.wikim...o_text%29.svg.png	image	1.7 KB	1.5 KB

Requests and sizes per content type

Content	Transfer Size	Content Size	Requests
html	19.3 KB	75.0 KB	1
css	13.2 KB	53.3 KB	2
javascript	209.0 KB	732.0 KB	7
image	131.4 KB	127.6 KB	22
svg	1.6 KB	1.5 KB	4
favicon	1.2 KB	2.7 KB	1
Total	375.8 KB	992.0 KB	37

Size and requests per domain

Domain	Header Size	Transfer Size	Content Size	Requests
en.wikipedia.org	N/A	267.6 KB	886.5 KB	16
upload.wikimedia.org	N/A	106.8 KB	103.6 KB	19
login.wikimedia.org	N/A	445 B	236 B	1
meta.wikimedia.org	N/A	925 B	1.7 KB	1

Expires, last modified and cookies stats

type	min	median	max
Expires	0 seconds	0 seconds	1 year
Last modified	2 seconds	48 weeks	7 years
Cookies	0	0	0

Requests loaded after onLoad event

Content	Transfer Size	Requests
html	0 b	0
css	0 b	0
javascript	19.6 KB	3
image	2.7 KB	2
font	0 b	0
favicon	1.2 KB	1
svg	644 B	1
Total	24.1 KB	7

Requests loaded after onContentLoad

Includes requests done after onLoad.

Content	Transfer Size	Requests
html	0 b	0
css	0 b	0
javascript	187.1 KB	6
image	19.3 KB	13
font	0 b	0
favicon	1.2 KB	1
svg	644 B	1
Total	208.2 KB	21

CPU

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

Download trace log

Long Tasks

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

Type	Quantity	Total duration (ms)
Total Blocking Time		63
Max Potential First Input Delay		105
Long Tasks before First Paint	1	108
Long Tasks before First Contentful Paint	1	108
Long Tasks after Load Event End	2	163
Total Long Tasks	3	271

Individual Long Tasks

name	startTime	duration	containerType
unknown	252	108	window
self	525	58	window
self	696	105	window

CPU time spent

Calculated using Tracium.

Categories (ms)
parseHTML	27
styleLayout	149
paintCompositeRender	44
scriptParseCompile	7
scriptEvaluation	343
garbageCollection	14
other	147

Events (ms)
V8.Execute	220
RunTask	142
Layout	102
V8.HandleInterrupts	100
UpdateLayoutTree	47
ParseHTML	25
Paint	13
UpdateLayerTree	12
V8.GCScavenger	12

Time spent per request

URL	CPU time (ms)
https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector	206
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.cx.eventlogging.campaigns%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2CtextSelection%7Cjquery.uls.data%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%2Cstartup%7Cmediawiki.ui.button%2Cicon%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.js%7Cuser.defaults&skin=vector&version=1q0ey	174

URL

CPU time (ms)

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

206

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.cx.eventlogging.campaigns%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.uls.common%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2CtextSelection%7Cjquery.uls.data%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%2Cstartup%7Cmediawiki.ui.button%2Cicon%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.js%7Cuser.defaults&skin=vector&version=1q0ey

174

CPU time spent

Tool/domain	Time (ms)
en.wikipedia.org	379.5

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).

Content	Header Size	Transfer Size	Content Size	Requests
html	0 b	19.3 KB	75.0 KB	1
css	0 b	13.2 KB	53.3 KB	2
javascript	0 b	209.0 KB	732.0 KB	7
image	0 b	131.4 KB	127.6 KB	22
font	0 b	0 b	0 b	0
svg	0 b	1.6 KB	1.5 KB	4
favicon	0 b	1.2 KB	2.7 KB	1
Total	N/A	375.8 KB	992.0 KB	37

Third party requests and sizes per content type

Content	Header Size	Transfer Size	Content Size	Requests
html	0 b	0 b	0 b	0
css	0 b	0 b	0 b	0
javascript	0 b	0 b	0 b	0
image	0 b	0 b	0 b	0
font	0 b	0 b	0 b	0
Total	N/A	N/A	N/A

Run 2 summary

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

Summary

Waterfall

Video

Filmstrip

Coach

Coach score

Accessibility advice (78)

Performance advice (78)

Best practice advice (83)

Privacy advice (86)

Page info

Visual Metrics

Browser Metrics

Largest Contentful Paint

Detected Cumulative Layout Shift

Element timings

Server timings

Custom metrics collected through JavaScript

Extra metrics collected using scripting

CDP Performance

PageXray

Largest assets on the page (by transfer size)

Requests and sizes per content type

Size and requests per domain

Expires, last modified and cookies stats

Requests loaded after onLoad event

Requests loaded after onContentLoad

CPU

Long Tasks

Individual Long Tasks

CPU time spent

Time spent per request

CPU time spent

Third party

First party requests and sizes per content type

Third party requests and sizes per content type