1 page analysed for https://en.wikipedia.org/wiki/...

Tested 2026-08-24 21:08:05 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://en.wikipedia...ia.org/w/load.php → run-1 second5 minutes22.5 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second4 weeks8.1 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second4 weeks18.3 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second4 weeks209.9 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second4 weeks26.3 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second4 weeks3.0 KB0 b
https://auth.wikimed...gin/checkLoggedIn → run-1 second0 seconds1.7 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://en.wikipedia...ia.org/w/load.php → run-1 second5 minutes26.0 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second5 minutes3.4 KB0 b

Largest image files

5 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...Icon_pdf_file.png → run5 years0 seconds2.2 KB0 b
https://upload.wikim...n-shackle.svg.png → run2 years0 seconds2.3 KB0 b
https://upload.wikim...symbol%29.svg.png → run8 minutes0 seconds7.4 KB0 b
https://upload.wikim...symbol%29.svg.png → run8 minutes0 seconds4.6 KB0 b
https://en.wikipedia...uch/wikipedia.png → run7 weeks1 year2.2 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://en.wikipedia.org/wiki/ChatGPT → run6 minutes0 seconds183.0 KB0 b

Largest favicon files

1 file

The largest favicon files across the tested pages.

urltime since last modifiedcache timetransfersize
https://en.wikipedia...con/wikipedia.ico → run7 weeks1 year2.0 KB0 b

Largest other files

1 file

The largest other files across the tested pages.

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

Largest text files

1 file

The largest text files across the tested pages.

urltime since last modifiedcache timetransfersize
https://en.wikipedia...ns-502b/v2/events → run-1 second0 seconds997 B0 b

Largest SVG files

10 files

The largest SVG files across the tested pages.

urltime since last modifiedcache timetransfersize
https://en.wikipedia...ons/enwiki-25.svg → run7 weeks1 year44.2 KB0 b
https://en.wikipedia...ordmark-en-25.svg → run7 weeks1 year5.1 KB0 b
https://en.wikipedia...tagline-en-25.svg → run7 weeks1 year5.8 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second4 weeks1.3 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second4 weeks1.5 KB0 b
https://en.wikipedia...n-progressive.svg → run6 days1 year1.2 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second4 weeks1.3 KB0 b
https://en.wikipedia...r-progressive.svg → run7 days1 year1.2 KB0 b
https://en.wikipedia...nify-clip-ltr.svg → run7 days1 year1.2 KB0 b
https://en.wikipedia...ges/sort_both.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://en.wikipedia.org/wiki/ChatGPT → runhtml6 minutes0 seconds183.0 KB0 b752 ms
https://en.wikipedia...tagline-en-25.svg → runsvg7 weeks1 year5.8 KB0 b348 ms
https://en.wikipedia...ordmark-en-25.svg → runsvg7 weeks1 year5.1 KB0 b337 ms
https://en.wikipedia...ons/enwiki-25.svg → runsvg7 weeks1 year44.2 KB0 b329 ms
https://en.wikipedia...ia.org/w/load.php → runjavascript-1 second5 minutes22.5 KB0 b272 ms
https://en.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes3.4 KB0 b264 ms
https://en.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes26.0 KB0 b243 ms
https://en.wikipedia...ia.org/w/load.php → runsvg-1 second4 weeks1.3 KB0 b128 ms
https://en.wikipedia...n-progressive.svg → runsvg6 days1 year1.2 KB0 b117 ms
https://en.wikipedia...ia.org/w/load.php → runsvg-1 second4 weeks1.5 KB0 b115 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://en.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes26.0 KB0 b
https://en.wikipedia...ia.org/w/load.php → runjavascript-1 second5 minutes22.5 KB0 b
https://upload.wikim...symbol%29.svg.png → runimage8 minutes0 seconds7.4 KB0 b
https://upload.wikim...symbol%29.svg.png → runimage8 minutes0 seconds4.6 KB0 b
https://en.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes3.4 KB0 b
https://upload.wikim...n-shackle.svg.png → runimage2 years0 seconds2.3 KB0 b
https://upload.wikim...Icon_pdf_file.png → runimage5 years0 seconds2.2 KB0 b
https://auth.wikimed...gin/checkLoggedIn → runjavascript-1 second0 seconds1.7 KB0 b
https://en.wikipedia...alAutoLogin/start → runother-1 second0 seconds1.1 KB0 b
https://en.wikipedia...ns-502b/v2/events → runplain-1 second0 seconds997 B0 b