Tested 2026-04-12 20:38:48 using Chrome 146.0.7680.80 (script).(runtime settings).
Test mobile as a logged in userLogin the user with an empty browser cache, then visit Obama and Facebook
| Metric | Value |
|---|---|
| Page metrics | |
| Performance Score | 84 |
| Total Page Transfer Size | 358.7 KB |
| Requests | 12 |
| Timing metrics | |
| TTFB [median] | 1.376 s |
| First Paint [median] | 2.200 s |
| Fully Loaded [median] | 8.335 s |
| Google Web Vitals | |
| TTFB [median] | 1.376 s |
| First Contentful Paint (FCP) [median] | 2.200 s |
| Largest Contentful Paint (LCP) [median] | 2.376 s |
| Cumulative Layout Shift (CLS) [median] | 0.14 |
| Total Blocking Time [median] | 931 ms |
| Max Potential FID [median] | 267 ms |
| CPU metrics | |
| CPU long tasks [median] | 15 |
| CPU longest task duration | 267 ms |
| CPU last long task happens at | 4.519 s |
| Visual Metrics | |
| First Visual Change [median] | 2.234 s |
| Speed Index [median] | 3.119 s |
| Visual Complete 85% [median] | 4.267 s |
| Visual Complete 99% [median] | 4.267 s |
| Last Visual Change [median] | 18.234 s |
| Metric | min | median | mean | max |
|---|---|---|---|---|
| Visual Metrics | ||||
| FirstVisualChange | 2.234 s | 2.234 s | 2.234 s | 2.234 s |
| LastVisualChange | 18.234 s | 18.234 s | 18.234 s | 18.234 s |
| SpeedIndex | 3.119 s | 3.119 s | 3.119 s | 3.119 s |
| LargestImage | 4.267 s | 4.267 s | 4.267 s | 4.267 s |
| Heading | 4.267 s | 4.267 s | 4.267 s | 4.267 s |
| LargestContentfulPaint | 4.267 s | 4.267 s | 4.267 s | 4.267 s |
| LastMeaningfulPaint | 4.267 s | 4.267 s | 4.267 s | 4.267 s |
| VisualReadiness | 16.000 s | 16.000 s | 16.000 s | 16.000 s |
| VisualComplete85 | 4.267 s | 4.267 s | 4.267 s | 4.267 s |
| VisualComplete95 | 4.267 s | 4.267 s | 4.267 s | 4.267 s |
| VisualComplete99 | 4.267 s | 4.267 s | 4.267 s | 4.267 s |
| Google Web Vitals | ||||
| Time To First Byte (TTFB) | 1.376 s | 1.376 s | 1.376 s | 1.376 s |
| Largest Contentful Paint (LCP) | 2.376 s | 2.376 s | 2.376 s | 2.376 s |
| First Contentful Paint (FCP) | 2.200 s | 2.200 s | 2.200 s | 2.200 s |
| Cumulative Layout Shift (CLS) | 0.1435 | 0.1435 | 0.1435 | 0.1435 |
| More metrics | ||||
| firstPaint | 2.200 s | 2.200 s | 2.200 s | 2.200 s |
| loadEventEnd | 2.864 s | 2.864 s | 2.864 s | 2.864 s |
| User Timing | ||||
| mwStartup | 1.701 s | 1.701 s | 1.701 s | 1.701 s |
| mwCentralNoticeBanner | 4.177 s | 4.177 s | 4.177 s | 4.177 s |
| CPU | ||||
| Total Blocking Time | 931 ms | 931 ms | 931 ms | 931 ms |
| Max Potential FID | 267 ms | 267 ms | 267 ms | 267 ms |
| CPU long tasks | 15 | 15 | 15 | 15 |
| CPU last long task happens at | 4.519 s | 4.519 s | 4.519 s | 4.519 s |
Run 1 SpeedIndex median
Use--filmstrip.showAll to show all filmstrips.
0 s1.7 sCPU Long Task duration 63 ms1.8 smwStartup 1.701 s2.1 sCPU Long Task duration 145 ms2.2 sFirst Contentful Paint 2.200 s
2.3 sFirst Visual Change 2.234 sCPU Long Task duration 92 ms
2.4 sCPU Long Task duration 64 msLCP <P> 2.376 s
2.5 s
2.6 sCPU Long Task duration 178 ms
2.7 s
2.8 sCPU Long Task duration 87 ms
2.9 sDOM Content Loaded Time 2.849 sPage Load Time 2.863 s
3 sCPU Long Task duration 88 ms
3.1 sCPU Long Task duration 70 ms
3.2 sCPU Long Task duration 267 ms
3.3 s
3.4 s
3.5 s
3.6 sCPU Long Task duration 53 msCPU Long Task duration 260 ms
3.7 s
3.8 s
3.9 sCPU Long Task duration 166 ms
4 s
4.1 s
4.2 smwCentralNoticeBanner 4.177 sCPU Long Task duration 60 ms
4.3 sLayout Shift 0.14350 4.225 sVisual Complete 85% 4.267 sVisual Complete 95% 4.267 sVisual Complete 99% 4.267 sLargest Image 4.267 sHeading 4.267 s
4.4 sCPU Long Task duration 63 ms4.6 sCPU Long Task duration 133 ms
5.4 s
5.5 s
5.6 s
5.7 s
5.8 s
5.9 s
6 s
6.1 s
6.2 s
6.3 s
6.4 s
6.5 s
6.6 s
6.7 s
6.8 s
6.9 s
7 s
7.1 s
7.2 s
7.3 s
7.4 s
7.5 s8.4 sFully Loaded 8.335 s
8.5 s
8.6 s
8.7 s
8.8 s
8.9 s
9 s
9.1 s
9.2 s
9.3 s
9.4 s
9.5 s
9.6 s
9.7 s
9.8 s
9.9 s
10 s
10.1 s
10.2 s
10.3 s
10.4 s
10.5 s
10.6 s
11.5 s
11.6 s
11.7 s
11.8 s
11.9 s
12 s
12.1 s
12.2 s
12.3 s
12.4 s
12.5 s
12.6 s
12.7 s
12.8 s
12.9 s
13 s
13.1 s
13.2 s
13.3 s
13.4 s
13.5 s
13.6 s
14.5 s
14.6 s
14.7 s
14.8 s
14.9 s
15 s
15.1 s
15.2 s
15.3 s
15.4 s
15.5 s
15.6 s
15.7 s
15.8 s
15.9 s
16 s
16.1 s
16.2 s
16.3 s
16.4 s
16.5 s
16.6 s
17.5 s
17.6 s
17.7 s
17.8 s
17.9 s
18 s
18.1 s
18.2 s
18.3 sLast Visual Change 18.234 sThe 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 | ||||||
|---|---|---|---|---|---|---|---|---|
| Don't scale images in the browser (avoidScalingImages) | The page has 3 images that are scaled more than 100 pixels. It would be better if those images are sent so the browser don't need to scale them. | 70 | ||||||
| Description: It's easy to scale images in the browser and make sure they look good in different devices, however that is bad for performance! Scaling images in the browser takes extra CPU time and will hurt performance on mobile. And the user will download extra kilobytes (sometimes megabytes) of data that could be avoided. Don't do that, make sure you create multiple version of the same image server-side and serve the appropriate one. | ||||||||
| Offenders: | ||||||||
| Have a fast first contentful paint (firstContentfulPaint) | First contentful paint can be improved (2.200 s). It is in the Google Web Vitals needs improvement range, slower than 1.8 seconds. | 50 | ||||||
| Description: The First Contentful Paint (FCP) metric measures the time from when the page starts loading to when any part of the page content is rendered on the screen. For this metric, "content" refers to text, images (including background images), <svg> elements, or non-white <canvas> elements. | ||||||||
| Inline CSS for faster first render (inlineCss) | The page has both inline CSS and CSS requests even though it uses a HTTP/2-ish connection. If you have many users on slow connections, it can be better to only inline the CSS. Run your own tests and check the waterfall graph to see what happens. | 95 | ||||||
| Description: In the early days of the Internet, inlining CSS was one of the ugliest things you can do. That has changed if you want your page to start rendering fast for your user. Always inline the critical CSS when you use HTTP/1 and HTTP/2 (avoid doing CSS requests that block rendering) and lazy load and cache the rest of the CSS. It is a little more complicated when using HTTP/2. Does your server support HTTP push? Then maybe that can help. Do you have a lot of users on a slow connection and are serving large chunks of HTML? Then it could be better to use the inline technique, becasue some servers always prioritize HTML content over CSS so the user needs to download the HTML first, before the CSS is downloaded. | ||||||||
| Avoid CPU Long Tasks (longTasks) | The page has 15 CPU long tasks with the total of 1.789 s. The total blocking time is 931 ms and 2 long tasks before first contentful paint with total time of 208 ms. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. Use Geckoprofiler for Firefox or Chromes tracelog to debug your long tasks. | 0 | ||||||
| Description: Long CPU tasks locks the thread. To the user this is commonly visible as a "locked up" page where the browser is unable to respond to user input; this is a major source of bad user experience on the web today. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. To debug you should use the Chrome timeline log and drag/drop it into devtools or use Firefox Geckoprofiler. | ||||||||
| Offenders: | ||||||||
| Avoid extra requests by setting cache headers (cacheHeaders) | The page has 5 requests that are missing a cache time. Configure a cache time so the browser doesn't need to download them every time. It will save 100.9 kB the next access. | 50 | ||||||
| Description: The easiest way to make your page fast is to avoid doing requests to the server. Setting a cache header on your server response will tell the browser that it doesn't need to download the asset again during the configured cache time! Always try to set a cache time if the content doesn't change for every request. | ||||||||
| Offenders: | ||||||||
| Long cache headers is good (cacheHeadersLong) | The page has 1 request that have a shorter cache time than 30 days (but still a cache time). | 99 | ||||||
| Description: Setting a cache header is good. Setting a long cache header (at least 30 days) is even better beacause then it will stay long in the browser cache. But what do you do if that asset change? Rename it and the browser will pick up the new version. | ||||||||
| Offenders: | ||||||||
| Make each CSS response small (optimalCssSize) | https://en.wikipedia.org/w/load.php?lang=en&modules=ext.chart.styles%7Cext.cite.styles%7Cext.echo.styles.alert%2Cbadge%7Cext.personalDashboard.menuIcon%7Cext.relatedArticles.styles%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cmediawiki.hlist%7Cmediawiki.page.gallery.styles%7Cmobile.init.styles%7Coojs-ui.styles.icons-alerts%7Cskins.minerva.amc.styles%7Cskins.minerva.codex.styles%7Cskins.minerva.content.styles.images%7Cskins.minerva.icons%2Cstyles%7Cskins.minerva.loggedin.styles%7Cskins.minerva.overflow.icons%7Cskins.minerva.personalMenu.icons%7Cwikibase.client.init&only=styles&skin=minerva size is 25.1 kB (25126) and that is bigger than the limit of 14.5 kB. Try to make the CSS files fit into 14.5 KB. | 90 | ||||||
| Description: Make CSS responses small to fit into the magic number TCP window size of 14.5 KB. The browser can then download the CSS faster and that will make the page start rendering earlier. | ||||||||
Offenders:
| ||||||||
| Don't use private headers on static content (privateAssets) | The page has 2 requests 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 | ||||||
| Description: If you set private headers on content, that means that the content are specific for that user. Static content should be able to be cached and used by everyone. Avoid setting the cache header to private. | ||||||||
| Offenders: | ||||||||
| Title | Advice | Score |
|---|---|---|
| Cumulative Layout Shift (cumulativeLayoutShift) | You have a cumulative layout shift score (0.1435) that needs improvements. It is in the Google Web Vitals needs improvement range, shift higher than 0.1. You should manually check the filmstrip or video and check if it will affect the user. | 50 |
| Description: Cumulative Layout Shift measures the sum total of all individual layout shift scores for unexpected layout shift that occur. The metric is measuring visual stability by quantify how often users experience unexpected layout shifts. It is one of Google Web Vitals. | ||
| 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.org/wiki/Facebook has a header content-security-policy that is 1419 characters long. https://en.wikipedia.org/wiki/Facebook has a header content-security-policy-report-only that is 1397 characters long. https://meta.wikimed...a.org/w/index.php has a header content-security-policy that is 1419 characters long. https://meta.wikimed...a.org/w/index.php has a header content-security-policy-report-only that is 1397 characters long. | 96 |
| Description: Do not send response headers that are too long. | ||
| Offenders: | ||
| Avoid unnecessary headers (unnecessaryHeaders) | There are 5 responses that sets both a max-age and expires header. There are 12 responses that sets a server header. | 83 |
| 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 | Facebook - Wikipedia |
| Generator | MediaWiki 1.46.0-wmf.23 |
| Width | 361 |
| Height | 4388 |
| DOM elements | 11804 |
| Avg DOM depth | 13 |
| Max DOM depth | 20 |
| Iframes | 0 |
| Script tags | 8 |
| Local storage | 1.3 MB |
| Session storage | 0 b |
| Network Information API | 4g |
| Resource Hints |
|---|
| dns-prefetch |
| https://meta.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 |
Data from run 1
| Visual Metrics | |
|---|---|
| First Visual Change | 2.234 s |
| Speed Index | 3.119 s |
| Largest Image | 4.267 s |
| Heading | 4.267 s |
| LargestContentfulPaint | 4.267 s |
| Last Meaningful Paint | 4.267 s |
| Largest Contentful Paint | 4.267 s |
| Visual Complete 85% | 4.267 s |
| Visual Complete 95% | 4.267 s |
| Visual Complete 99% | 4.267 s |
| Last Visual Change | 18.234 s |
| Visual Readiness | 16.000 s |
| Navigation Timing | |
|---|---|
| backEndTime | 1.376 s |
| domContentLoadedTime | 2.849 s |
| domInteractiveTime | 2.848 s |
| domainLookupTime | 0 ms |
| frontEndTime | 948 ms |
| pageDownloadTime | 538 ms |
| pageLoadTime | 2.863 s |
| redirectionTime | 0 ms |
| serverConnectionTime | 0 ms |
| serverResponseTime | 1.909 s |
| Google Web Vitals | |
|---|---|
| Time to first byte (TTFB) | 1.376 s |
| First Contentful Paint (FCP) | 2.200 s |
| Largest Contentful Paint (LCP) | 2.376 s |
| Cumulative Layout Shift (CLS) | 0.14 |
| Total Blocking Time (TBT) | 931 ms |
| First Contentful Paint info | |
|---|---|
| Elements that needed recalculate style before FCP | 158 |
| Time spent in recalculate style before FCP | 82.774 ms |
| Extra timings | |
|---|---|
| TTFB | 1.376 s |
| First Paint | 2.200 s |
| Load Event End | 2.864 s |
| Fully loaded | 8.335 s |
| User Timing marks | |
|---|---|
| mwStartup | 1.701 s |
| mwCentralNoticeBanner | 4.177 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 | 2.376 s |
| Element render delay | 1.000 s |
| TTFB | 1.376 s |
| Resource delay | 0 ms |
| Resource load duration | 0 ms |
| Elements that needed recalculate style before LCP | 386 |
| Time spent in recalculate style before LCP | 108.24 ms |
| Load time | 0 ms |
| Size (width*height) | 83385 |
| DOM path | |
| div#mw-mf-viewport > div#mw-mf-page-center > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > section#mf-section-0 > p:eq(1)> div#mw-mf-viewport > div#mw-mf-page-center > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > section#mf-section-0 > p:eq(1)> | |
The largest contentful paint is highlighted in the image. If no element is highlighted the element was removed before the screenshot or the LCP API couldn't find the element.
0.14350 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 |
|---|---|
| 0.14350 | <div id="bodyContent" class="content"></div>,<div class="pre-content heading-holder"></div>,<ul id="p-views" class="page-actions-menu__list minerva-icon-only-menu"></ul>,<table class="infobox vcard"></table> |
| body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div#bodyContent,body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div:eq(1),body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div:eq(1) > nav > ul#p-views,body > div#mw-mf-viewport > div#mw-mf-page-center > main#content > div#bodyContent > div#mw-content-text > div:eq(0) > section#mf-section-0 > table | |
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.
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 |
|---|---|---|---|---|
| 229.2 ms | 310.8 ms | 11.4 ms | 0 ms | 11.4 ms |
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.chart.bootstrap%7Cjquery&skin=minerva&version=s42id | ||||
Invoker: TimerHandler:setTimeout | ||||
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.chart.bootstrap%7Cjquery&skin=minerva&version=s42id | ||||
Forced Style And Layout Duration: 2 ms Invoker: TimerHandler:setTimeout | ||||
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.chart.bootstrap%7Cjquery&skin=minerva&version=s42id | ||||
Invoker: TimerHandler:setTimeout | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 212.1 ms | 32.9 ms | 249.9 ms | 239.6 ms | 10.3 ms |
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva | ||||
Invoker: IdleRequestCallback | ||||
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.chart.bootstrap%7Cjquery&skin=minerva&version=s42id | ||||
Invoker: TimerHandler:setTimeout | ||||
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva | ||||
Forced Style And Layout Duration: 45 ms Invoker: FrameRequestCallback | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 173.2 ms | 180 ms | 44.8 ms | 0 ms | 44.8 ms |
| No availible script information. | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 172.5 ms | 609.6 ms | 131.9 ms | 0.4 ms | 131.5 ms |
| https://en.wikipedia.org/wiki/Facebook | ||||
Invoker: https://en.wikipedia.org/wiki/Facebook | ||||
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva | ||||
Invoker: https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 119.7 ms | 186 ms | 3 ms | 0.9 ms | 2.1 ms |
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.chart.bootstrap%7Cjquery&skin=minerva&version=s42id | ||||
Forced Style And Layout Duration: 21 ms Invoker: TimerHandler:setTimeout | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 100.9 ms | 89 ms | 62.3 ms | 47.4 ms | 14.9 ms |
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva | ||||
Invoker: IdleRequestCallback | ||||
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva | ||||
Invoker: FrameRequestCallback | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 83.1 ms | 133.1 ms | 0 ms | 0 ms | 0 ms |
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva | ||||
Invoker: IdleRequestCallback | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 42.5 ms | 18.4 ms | 81.3 ms | 0 ms | 81.3 ms |
| No availible script information. | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 38.8 ms | 75.1 ms | 23.9 ms | 0 ms | 23.9 ms |
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva | ||||
Invoker: IdleRequestCallback | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 27.5 ms | 44.6 ms | 39.3 ms | 0.1 ms | 39.2 ms |
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.chart.bootstrap%7Cjquery&skin=minerva&version=s42id | ||||
Invoker: TimerHandler:setTimeout | ||||
| name | duration | description |
|---|---|---|
| cache | 0 | pass |
| host | 0 | cp3070 |
There are no custom configured scripts.
There are no custom extra metrics from scripting.
| Name | Display Time | X | Y | Width | Height |
|---|---|---|---|---|---|
| LargestImage (960px-Ukraine_everywhere_on_Wikipedia_visual.png) | 4.267 s | 3 | 85 | 80 | 50 |
| <img src="https://upload.wikimedia.org/wikipedia/commons/thumb/4/48/Ukraine_everywhere_on_Wikipedia_visual.png/960px-Ukraine_everywhere_on_Wikipedia_visual.png" alt="Banner logo" height="50px" width="80px"> | |||||
| Heading | 4.267 s | 16 | 184 | 328 | 37 |
| <h1 id="firstHeading" class="firstHeading mw-first-heading"></h1> | |||||
| LargestContentfulPaint | 4.267 s | 16 | 395 | 328 | 264 |
| <p></p> | |||||
How the page is built.
| Summary | |
|---|---|
| HTTP version | HTTP/2.0 |
| Total requests | 12 |
| Total domains | 4 |
| Total transfer size | 358.7 KB |
| Total content size | 1.4 MB |
| Responses missing compression | 5 |
| Number of cookies | 3 |
| Third party cookies | 0 |
| Requests per response code | |
|---|---|
| 200 | 10 |
| 202 | 2 |
| URL | Type | Transfer Size | Content Size |
|---|---|---|---|
| https://en.wikipedia.org/wiki/Facebook | html | 188.2 KB | 1.0 MB |
| https://upload.wikim...ook_user_page.png | image | 82.1 KB | 81.1 KB |
| https://en.wikipedia...ia.org/w/load.php | javascript | 40.5 KB | 139.0 KB |
| https://en.wikipedia...ia.org/w/load.php | css | 24.5 KB | 191.8 KB |
| https://meta.wikimed...a.org/w/index.php | javascript | 6.0 KB | 7.1 KB |
| https://upload.wikim...282023%29.svg.png | image | 5.2 KB | 4.3 KB |
| https://upload.wikim...book_icon.svg.png | image | 4.2 KB | 3.2 KB |
| https://en.wikipedia...ia.org/w/load.php | javascript | 3.8 KB | 13.2 KB |
| https://intake-loggi...dia.org/v1/events | plain | 1.2 KB | 0 b |
| https://upload.wikim...Increase2.svg.png | image | 1.1 KB | 180 B |
| https://en.wikipedia...ia.org/w/load.php | svg | 1.1 KB | 292 B |
| https://en.wikipedia...ns-502b/v2/events | plain | 867 B | 0 b |
| Content | Header Size | Transfer Size | Content Size | Requests |
|---|---|---|---|---|
| html | 0 b | 188.2 KB | 1.0 MB | 1 |
| css | 0 b | 24.5 KB | 191.8 KB | 1 |
| javascript | 0 b | 50.3 KB | 159.3 KB | 3 |
| image | 0 b | 92.5 KB | 88.8 KB | 4 |
| svg | 0 b | 1.1 KB | 292 B | 1 |
| plain | 0 b | 2.0 KB | 0 b | 2 |
| Total | 0 b | 358.7 KB | 1.4 MB | 12 |
| Domain | Total download time | Transfer Size | Content Size | Requests |
|---|---|---|---|---|
| en.wikipedia.org | 2.828 s | 259.0 KB | 1.3 MB | 6 |
| upload.wikimedia.org | 655 ms | 92.5 KB | 88.8 KB | 4 |
| meta.wikimedia.org | 106 ms | 6.0 KB | 7.1 KB | 1 |
| intake-logging.wikimedia.org | 203 ms | 1.2 KB | 0 b | 1 |
| type | min | median | max |
|---|---|---|---|
| Expires | 0 seconds | 0 seconds | 4 weeks |
| Last modified | 2 minutes | 1 week | 2 years |
Included requests done after load event end.
| Content | Transfer Size | Requests |
|---|---|---|
| html | 0 b | 0 |
| css | 0 b | 0 |
| javascript | 9.8 KB | 2 |
| image | 0 b | 0 |
| font | 0 b | 0 |
| plain | 2.0 KB | 2 |
| Total | 11.9 KB | 4 |
Includes requests done after DOM content loaded.
| Content | Transfer Size | Requests |
|---|---|---|
| html | 0 b | 0 |
| css | 0 b | 0 |
| javascript | 9.8 KB | 2 |
| image | 0 b | 0 |
| font | 0 b | 0 |
| plain | 2.0 KB | 2 |
| Total | 11.9 KB | 4 |
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 | 931 | |
| Max Potential First Input Delay | 267 | |
| Long Tasks before First Paint | 2 | 208 |
| Long Tasks before First Contentful Paint | 2 | 208 |
| Long Tasks before Largest Contentful Paint | 4 | 364 |
| Long Tasks after Load Event End | 9 | 1160 |
| Total Long Tasks | 15 | 1789 |
CPU last long task happened at 4.519 s
| name | startTime | duration | containerId | containerName | containerSrc | containerType |
|---|---|---|---|---|---|---|
| self | 1698 | 63 | window | |||
| unknown | 2041 | 145 | window | |||
| unknown | 2273 | 92 | window | |||
| self | 2372 | 64 | window | |||
| self | 2574 | 178 | window | |||
| unknown | 2753 | 87 | window | |||
| self | 2952 | 88 | window | |||
| self | 3040 | 70 | window | |||
| self | 3153 | 267 | window | |||
| self | 3508 | 53 | window | |||
| self | 3594 | 260 | window | |||
| self | 3873 | 166 | window | |||
| unknown | 4186 | 60 | window | |||
| self | 4334 | 63 | window | |||
| self | 4519 | 133 | window |
Calculated using Tracium.
| Categories (ms) | |
|---|---|
| parseHTML | 303 |
| styleLayout | 779 |
| paintCompositeRender | 86 |
| scriptParseCompile | 9 |
| scriptEvaluation | 1382 |
| garbageCollection | 75 |
| other | 3162 |
| Events (ms) | |
|---|---|
| RunTask | 1338 |
| FunctionCall | 1195 |
| UpdateLayoutTree | 595 |
| CpuProfiler::StartProfiling | 486 |
| Layerize | 443 |
| PrePaint | 404 |
| ParseHTML | 287 |
| Layout | 181 |
| Commit | 150 |
| IntersectionObserverController::computeIntersections | 93 |
| v8.run | 76 |
| DocumentLoader::BodyLoadingFinished | 74 |
| DecodedDataDocumentParser::AppendBytes | 74 |
| Paint | 49 |
| V8.HandleInterrupts | 30 |
| v8.callFunction | 29 |
| PaintImage | 18 |
| ParseAuthorStyleSheet | 16 |
| HitTest | 16 |
| v8.produceCache | 15 |
| HTMLDocumentParser::MaybeFetchQueuedPreloads | 14 |
| V8.GC_MC_INCREMENTAL_EMBEDDER_TRACING | 14 |
| V8.GC_MC_EVACUATE_UPDATE_POINTERS_TO_NEW_ROOTS | 13 |
| DocumentLoader::BodyDataReceivedImpl | 12 |
| V8.GC_MARK_COMPACTOR | 10 |
| V8.GC_MC_INCREMENTAL | 10 |
