1 page analysed for https://www.mediawiki.org/wiki...

Tested 2026-07-28 01:47:19 using Firefox (runtime settings)

The top lists point out the specific files to fix first: the largest and slowest assets across all tested pages, and the assets returning visitors have to download again.

Largest JavaScript files

7 files

Every JavaScript byte is downloaded, parsed and executed on the main thread, so trimming the biggest bundles pays off twice.

urltime since last modifiedcache timetransfersize
https://www.mediawik...ki.org/w/load.php → run-1 second5 minutes20.8 KB0 b
https://www.mediawik...ki.org/w/load.php → run-1 second4 weeks17.9 KB0 b
https://www.mediawik...ki.org/w/load.php → run-1 second4 weeks312.5 KB0 b
https://www.mediawik...ki.org/w/load.php → run-1 second4 weeks3.0 KB0 b
https://www.mediawik...ki.org/w/load.php → run-1 second4 weeks137.6 KB0 b
https://www.mediawik...ki.org/w/load.php → run-1 second4 weeks2.0 KB0 b
https://auth.wikimed...gin/checkLoggedIn → run-1 second0 seconds1.6 KB0 b

Largest CSS files

2 files

CSS blocks rendering until it is downloaded and parsed, so the biggest files delay first paint the most.

urltime since last modifiedcache timetransfersize
https://www.mediawik...ki.org/w/load.php → run-1 second5 minutes37.0 KB0 b
https://www.mediawik...ki.org/w/load.php → run-1 second5 minutes1.8 KB0 b

Largest image files

10 files

Images are usually the easiest bytes to win back: resize them, compress harder or switch to a modern format like AVIF or WebP.

urltime since last modifiedcache timetransfersize
https://upload.wikim...roup_photo_01.jpg → run3 weeks0 seconds41.6 KB0 b
https://upload.wikim..._settings.svg.png → run9 weeks0 seconds2.2 KB0 b
https://upload.wikim...icon_edit.svg.png → run35 weeks0 seconds2.1 KB0 b
https://upload.wikim...on_markup.svg.png → run1 day0 seconds2.1 KB0 b
https://upload.wikim...elpNotice.svg.png → run34 weeks0 seconds2.2 KB0 b
https://upload.wikim..._feedback.svg.png → run49 weeks0 seconds2.2 KB0 b
https://upload.wikim...structive.svg.png → run5 weeks0 seconds2.2 KB0 b
https://upload.wikim...structive.svg.png → run9 weeks0 seconds2.2 KB0 b
https://upload.wikim...lb-yellow.svg.png → run8 weeks0 seconds2.2 KB0 b
https://www.mediawik...uch/mediawiki.png → run3 weeks1 year7.8 KB0 b

Largest HTML files

1 file

The HTML document is the first byte of everything: nothing starts rendering before it arrives.

urltime since last modifiedcache timetransfersize
https://www.mediawiki.org/wiki/MediaWiki → run2 weeks0 seconds21.5 KB0 b

Largest favicon files

1 file

The largest favicon files across the tested pages.

urltime since last modifiedcache timetransfersize
https://www.mediawik...con/mediawiki.ico → run3 weeks1 year8.5 KB0 b

Largest other files

1 file

The largest other files across the tested pages.

urltime since last modifiedcache timetransfersize
https://www.mediawik...alAutoLogin/start → run-1 second0 seconds1.1 KB0 b

Largest SVG files

9 files

The largest SVG files across the tested pages.

urltime since last modifiedcache timetransfersize
https://www.mediawik...mediawikiwiki.svg → run3 weeks1 year3.3 KB0 b
https://www.mediawik...wiki-wordmark.svg → run3 weeks1 year2.3 KB0 b
https://www.mediawik...ki.org/w/load.php → run-1 second4 weeks1.3 KB0 b
https://www.mediawik...ki.org/w/load.php → run-1 second4 weeks1.5 KB0 b
https://www.mediawik...ki.org/w/load.php → run-1 second4 weeks1.3 KB0 b
https://www.mediawik...nify-clip-ltr.svg → run5 days1 year1.2 KB0 b
https://www.mediawik...r-progressive.svg → run5 days1 year1.2 KB0 b
https://www.mediawik...imedia-button.svg → run3 weeks1 year2.6 KB0 b
https://www.mediawik...dby_mediawiki.svg → run5 days1 year5.3 KB0 b

Slowest responses

10 files

These assets took the longest time to download. Everything that waits for them (rendering, other requests on the same connection) is held up too.

urltypetime since last modifiedcache timetransfersizetiming
https://upload.wikim..._settings.svg.png → runimage9 weeks0 seconds2.2 KB0 b775 ms
https://upload.wikim...on_markup.svg.png → runimage1 day0 seconds2.1 KB0 b766 ms
https://upload.wikim...roup_photo_01.jpg → runimage3 weeks0 seconds41.6 KB0 b707 ms
https://www.mediawiki.org/wiki/MediaWiki → runhtml2 weeks0 seconds21.5 KB0 b502 ms
https://upload.wikim...icon_edit.svg.png → runimage35 weeks0 seconds2.1 KB0 b466 ms
https://www.mediawik...ki.org/w/load.php → runjavascript-1 second5 minutes20.8 KB0 b241 ms
https://www.mediawik...wiki-wordmark.svg → runsvg3 weeks1 year2.3 KB0 b239 ms
https://www.mediawik...mediawikiwiki.svg → runsvg3 weeks1 year3.3 KB0 b238 ms
https://www.mediawik...ki.org/w/load.php → runcss-1 second5 minutes1.8 KB0 b235 ms
https://www.mediawik...ki.org/w/load.php → runcss-1 second5 minutes37.0 KB0 b171 ms

Short or no cache time

10 files

Assets with a short cache time are re-downloaded by returning visitors. A longer cache lifetime makes repeat visits faster for free.

urltypetime since last modifiedcache timetransfersize
https://upload.wikim...roup_photo_01.jpg → runimage3 weeks0 seconds41.6 KB0 b
https://www.mediawik...ki.org/w/load.php → runcss-1 second5 minutes37.0 KB0 b
https://www.mediawik...ki.org/w/load.php → runjavascript-1 second5 minutes20.8 KB0 b
https://upload.wikim...structive.svg.png → runimage9 weeks0 seconds2.2 KB0 b
https://upload.wikim...elpNotice.svg.png → runimage34 weeks0 seconds2.2 KB0 b
https://upload.wikim..._settings.svg.png → runimage9 weeks0 seconds2.2 KB0 b
https://upload.wikim...lb-yellow.svg.png → runimage8 weeks0 seconds2.2 KB0 b
https://upload.wikim...structive.svg.png → runimage5 weeks0 seconds2.2 KB0 b
https://upload.wikim..._feedback.svg.png → runimage49 weeks0 seconds2.2 KB0 b
https://upload.wikim...icon_edit.svg.png → runimage35 weeks0 seconds2.1 KB0 b