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

Tested 2026-09-20 12:53:56 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 minutes21.1 KB0 b
https://www.mediawik...ki.org/w/load.php → run-1 second4 weeks18.3 KB0 b
https://www.mediawik...ki.org/w/load.php → run-1 second4 weeks306.4 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 weeks139.1 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 minutes36.8 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://thumb.wikime...roup_photo_01.jpg → run6 weeks0 seconds41.8 KB0 b
https://thumb.wikime..._settings.svg.png → run9 weeks0 seconds2.4 KB0 b
https://thumb.wikime...icon_edit.svg.png → run43 weeks0 seconds2.3 KB0 b
https://thumb.wikime...on_markup.svg.png → run8 weeks0 seconds2.3 KB0 b
https://thumb.wikime...elpNotice.svg.png → run7 weeks0 seconds2.4 KB0 b
https://thumb.wikime..._feedback.svg.png → run7 weeks0 seconds2.4 KB0 b
https://thumb.wikime...lb-yellow.svg.png → run5 weeks0 seconds2.4 KB0 b
https://thumb.wikime...structive.svg.png → run13 weeks0 seconds2.4 KB0 b
https://thumb.wikime...structive.svg.png → run17 weeks0 seconds2.4 KB0 b
https://www.mediawik...uch/mediawiki.png → run10 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 seconds23.0 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 → run10 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

7 files

The largest SVG files across the tested pages.

urltime since last modifiedcache timetransfersize
https://www.mediawik...mediawikiwiki.svg → run10 weeks1 year3.3 KB0 b
https://www.mediawik...wiki-wordmark.svg → run10 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

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://www.mediawik...ki.org/w/load.php → runjavascript-1 second4 weeks306.4 KB0 b555 ms
https://www.mediawiki.org/wiki/MediaWiki → runhtml2 weeks0 seconds23.0 KB0 b512 ms
https://www.mediawik...wiki-wordmark.svg → runsvg10 weeks1 year2.3 KB0 b224 ms
https://www.mediawik...mediawikiwiki.svg → runsvg10 weeks1 year3.3 KB0 b217 ms
https://www.mediawik...ki.org/w/load.php → runcss-1 second5 minutes1.8 KB0 b213 ms
https://www.mediawik...ki.org/w/load.php → runjavascript-1 second5 minutes21.1 KB0 b211 ms
https://www.mediawik...ki.org/w/load.php → runcss-1 second5 minutes36.8 KB0 b204 ms
https://www.mediawik...ki.org/w/load.php → runjavascript-1 second4 weeks18.3 KB0 b200 ms
https://www.mediawik...ki.org/w/load.php → runsvg-1 second4 weeks1.5 KB0 b182 ms
https://www.mediawik...ki.org/w/load.php → runsvg-1 second4 weeks1.3 KB0 b181 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://thumb.wikime...roup_photo_01.jpg → runimage6 weeks0 seconds41.8 KB0 b
https://www.mediawik...ki.org/w/load.php → runcss-1 second5 minutes36.8 KB0 b
https://www.mediawik...ki.org/w/load.php → runjavascript-1 second5 minutes21.1 KB0 b
https://thumb.wikime...structive.svg.png → runimage17 weeks0 seconds2.4 KB0 b
https://thumb.wikime...elpNotice.svg.png → runimage7 weeks0 seconds2.4 KB0 b
https://thumb.wikime..._settings.svg.png → runimage9 weeks0 seconds2.4 KB0 b
https://thumb.wikime...lb-yellow.svg.png → runimage5 weeks0 seconds2.4 KB0 b
https://thumb.wikime...structive.svg.png → runimage13 weeks0 seconds2.4 KB0 b
https://thumb.wikime..._feedback.svg.png → runimage7 weeks0 seconds2.4 KB0 b
https://thumb.wikime...icon_edit.svg.png → runimage43 weeks0 seconds2.3 KB0 b