Page summary

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

Tested 2018-06-27 05:33:18 using Chrome 67.0.3396.99 for 5 runs with desktop profile and connectivity native.

All runs: 1 - 2 - 3 - 4 - 5

SummaryWaterfall MetricsVideo CoachPageXray

Summary

MetricValue
Performance Score:75
Total Page Transfer Size:366.9 KB
Requests:31
First Visual Change [median]:333
Speed Index [median]:334
Visual Complete 85% [median]:333
Visual Complete 95% [median]:333
Visual Complete 99% [median]:400
Last Visual Change [median]:400
Screenshot of run 1

Timings Summary

metricminmedianmeanmax
SpeedIndex300334341400
PerceptualSpeedIndex300334342400
FirstVisualChange300333340400
LastVisualChange333400413500
VisualReadiness336773133
VisualComplete85300333340400
VisualComplete95300333340400
VisualComplete99300400393467
backEndTime808492131
firstPaint251290305370
fullyLoaded574587602641
rumSpeedIndex262297313370
mwStartup152232219255
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Waterfall

Run 3 SpeedIndex median

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Video

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Coach

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

I am the coach

Coach score

  • Total score 78
  • Performance score 75
  • Accessibility score 76
  • Best practice score 88

Accessibility advice (76)

TitleAdviceScore
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.70
  • mp-upper
  • mp-upper

Performance advice (75)

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
  • 3.2.1
Avoid extra requests by setting cache headers (cacheHeaders)The page has 18 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 96.8 kB the next access.0
  • https://upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Bundesarchiv_Bild_102-09158%2C_Expeditionsschiff_Byrds.jpg/120px-Bundesarchiv_Bild_102-09158%2C_Expeditionsschiff_Byrds.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Engraving_of_Monroe_Edwards_from_the_frontispiece_of_Life_and_Adventures_of_the_Accomplished_Forger_and_Swindler%2C_Colonel_Monroe_Edwards.jpg/100px-Engraving_of_Monroe_Edwards_from_the_frontispiece_of_Life_and_Adventures_of_the_Accomplished_Forger_and_Swindler%2C_Colonel_Monroe_Edwards.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/3/3c/AEJ_Collins_1899_postcard.jpg/90px-AEJ_Collins_1899_postcard.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/a/ae/Indonesia_-_Lake_Toba_%2826224127503%29.jpg/160px-Indonesia_-_Lake_Toba_%2826224127503%29.jpg
  • https://upload.wikimedia.org/wikipedia/commons/thumb/0/05/Lion_in_the_garden_of_Palmyra_Archeological_Museum%2C_2010-04-21.jpg/380px-Lion_in_the_garden_of_Palmyra_Archeological_Museum%2C_2010-04-21.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/f/fa/Wikibooks-logo.svg/35px-Wikibooks-logo.svg.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/3/3d/Mediawiki-logo.png/35px-Mediawiki-logo.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/en/thumb/0/06/Wiktionary-logo-v2.svg/35px-Wiktionary-logo-v2.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/commons/thumb/0/0b/Wikiversity_logo_2017.svg/41px-Wikiversity_logo_2017.svg.png
  • https://login.wikimedia.org/wiki/Special:CentralAutoLogin/checkLoggedIn?type=script&wikiid=enwiki&proto=https
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?debug=false&lang=en&modules=ext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cmediawiki.legacy.commonPrint%2Cshared%7Cmediawiki.skinning.interface%7Cskins.vector.styles&only=styles&skin=vector
  • https://en.wikipedia.org/w/load.php?debug=false&lang=en&modules=startup&only=scripts&skin=vector
  • https://en.wikipedia.org/w/load.php?debug=false&lang=en&modules=ext.gadget.charinsert-styles&only=styles&skin=vector
  • https://en.wikipedia.org/w/load.php?debug=false&lang=en&modules=site.styles&only=styles&skin=vector
Total JavaScript size shouldn't be too big (javascriptSize)The total JavaScript transfer size is 213.8 kB and the uncompressed size is 724.5 kB. This is too much. You need to remove as much as possible.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 (88)

TitleAdviceScore
Meta description (metaDescription)The page is missing a meta description.0

Page info

Page info
TitleWikipedia, the free encyclopedia
Width1350
Height2275
DOM elements938
Avg DOM depth11
Max DOM depth19
Iframes0
Script tags5
Local storage459.8 KB
Session storage81 B
HTML vs AMPPlain good HTML page
Resource Hints
dns-prefetch
https://login.wikimedia.org/
https://meta.wikimedia.org/
Third party
JQuery3.2.1
Google AnalyticsNo
Google Tag ManagerNo
PiwikNo
BoomerangNo
New RelicNo

Visual Metrics

Visual Metrics
First Visual Change333
Speed Index334
Perceptual Speed Index334
Visual Complete 85%333
Visual Complete 95%333
Visual Complete 99%400
Last Visual Change400

Browser Metrics

Navigation Timing
backEndTime80
domContentLoadedTime152
domInteractiveTime152
domainLookupTime1
frontEndTime452
pageDownloadTime18
pageLoadTime550
redirectionTime0
serverConnectionTime52
serverResponseTime42
Specials and User Timing
first-contentful-paint290
first-paint290
RUM Speed Index297
Fully loaded584
mwStartup232

Time spent

Categories (ms)
Scripting308.0
Rendering84.7
Painting8.8
Loading14.3
Other3.3
Events (ms)
FunctionCall156.7
EvaluateScript111.9
Layout48.8
UpdateLayoutTree31.9
BlinkGCMarking14.9
MinorGC14.4
ParseHTML9.8
Paint8.8
ParseAuthorStyleSheet4.5
v8.compile4.1
UpdateLayerTree4
ScriptWrappableMarkingVisitor::performLazyCleanup3.3
MajorGC1.9
ThreadState::performIdleLazySweep1.2
TimerFire0.9
ThreadState::completeSweep0.7
EventDispatch0.5
FireIdleCallback0.4
FireAnimationFrame0.3

Custom scripts

There are no custom configured scripts.

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PageXray

Hard facts about the page.

Summary
HTTP versionHTTP/2.0
Total requests31
Total domains3
Total transfer size366.9 KB
Total content size954.7 KB
Responses missing compression0
Fully loaded638 ms
Requests per response code
20031

Requests and sizes per content type

ContentHeader SizeTransfer SizeContent SizeRequests
htmlN/A18.7 KB71.8 KB1
cssN/A18.4 KB65.5 KB3
javascriptN/A208.8 KB707.5 KB6
imageN/A119.3 KB107.1 KB20
faviconN/A1.6 KB2.7 KB1
TotalN/A366.9 KB954.7 KB31

Size and requests per domain

DomainHeader SizeTransfer SizeContent SizeRequests
en.wikipedia.orgN/A272.4 KB871.4 KB13
upload.wikimedia.orgN/A93.5 KB83.1 KB17
login.wikimedia.orgN/A993 B219 B1

Expires, last modified and cookies stats

typeminmedianmax
Expires0 seconds0 seconds1 year
Last modified23 minutes46 weeks4 years
Cookies003

Requests loaded after onLoad event

ContentTransfer SizeRequests
htmlN/A0
cssN/A0
javascript16.7 KB1
imageN/A0
fontN/A0
favicon1.6 KB1
Total18.3 KB2

Requests loaded after onContentLoad

Includes requests done after onLoad.

ContentTransfer SizeRequests
htmlN/A0
cssN/A0
javascript129.7 KB4
image31.2 KB11
fontN/A0
favicon1.6 KB1
Total162.5 KB16