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

Tested 2026-08-24 21:40:10 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 minutes20.9 KB0 b
https://www.mediawik...ki.org/w/load.php → run-1 second4 weeks18.2 KB0 b
https://www.mediawik...ki.org/w/load.php → run-1 second4 weeks311.3 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 weeks138.2 KB0 b
https://auth.wikimed...gin/checkLoggedIn → run-1 second0 seconds1.6 KB0 b
https://www.mediawik...ki.org/w/load.php → run-1 second4 weeks2.0 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 minutes36.9 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 → run3 weeks0 seconds43.6 KB0 b
https://thumb.wikime..._settings.svg.png → run5 weeks0 seconds2.4 KB0 b
https://thumb.wikime...icon_edit.svg.png → run39 weeks0 seconds2.3 KB0 b
https://thumb.wikime...on_markup.svg.png → run4 weeks0 seconds2.3 KB0 b
https://thumb.wikime...elpNotice.svg.png → run4 weeks0 seconds2.4 KB0 b
https://thumb.wikime..._feedback.svg.png → run3 weeks0 seconds2.4 KB0 b
https://thumb.wikime...lb-yellow.svg.png → run6 days0 seconds2.4 KB0 b
https://thumb.wikime...structive.svg.png → run9 weeks0 seconds2.4 KB0 b
https://thumb.wikime...structive.svg.png → run13 weeks0 seconds2.4 KB0 b
https://www.mediawik...uch/mediawiki.png → run7 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 → run13 seconds0 seconds23.1 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 → run7 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 → run7 weeks1 year3.3 KB0 b
https://www.mediawik...wiki-wordmark.svg → run7 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 → run7 days1 year1.2 KB0 b
https://www.mediawik...r-progressive.svg → run7 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 weeks311.3 KB0 b552 ms
https://www.mediawiki.org/wiki/MediaWiki → runhtml13 seconds0 seconds23.1 KB0 b507 ms
https://www.mediawik...wiki-wordmark.svg → runsvg7 weeks1 year2.3 KB0 b233 ms
https://www.mediawik...mediawikiwiki.svg → runsvg7 weeks1 year3.3 KB0 b227 ms
https://www.mediawik...ki.org/w/load.php → runjavascript-1 second5 minutes20.9 KB0 b225 ms
https://www.mediawik...ki.org/w/load.php → runcss-1 second5 minutes1.8 KB0 b212 ms
https://www.mediawik...ki.org/w/load.php → runjavascript-1 second4 weeks18.2 KB0 b185 ms
https://www.mediawik...ki.org/w/load.php → runcss-1 second5 minutes36.9 KB0 b178 ms
https://www.mediawik...ki.org/w/load.php → runsvg-1 second4 weeks1.3 KB0 b137 ms
https://www.mediawik...ki.org/w/load.php → runsvg-1 second4 weeks1.5 KB0 b134 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 → runimage3 weeks0 seconds43.6 KB0 b
https://www.mediawik...ki.org/w/load.php → runcss-1 second5 minutes36.9 KB0 b
https://www.mediawik...ki.org/w/load.php → runjavascript-1 second5 minutes20.9 KB0 b
https://thumb.wikime...structive.svg.png → runimage13 weeks0 seconds2.4 KB0 b
https://thumb.wikime...elpNotice.svg.png → runimage4 weeks0 seconds2.4 KB0 b
https://thumb.wikime..._settings.svg.png → runimage5 weeks0 seconds2.4 KB0 b
https://thumb.wikime...lb-yellow.svg.png → runimage6 days0 seconds2.4 KB0 b
https://thumb.wikime...structive.svg.png → runimage9 weeks0 seconds2.4 KB0 b
https://thumb.wikime..._feedback.svg.png → runimage3 weeks0 seconds2.4 KB0 b
https://thumb.wikime...icon_edit.svg.png → runimage39 weeks0 seconds2.3 KB0 b