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

Tested 2026-07-27 21:33:50 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 minutes22.4 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 weeks18.0 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second4 weeks230.9 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 minutes26.1 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second5 minutes3.4 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...n-shackle.svg.png → run2 years0 seconds2.3 KB0 b
https://upload.wikim...symbol%29.svg.png → run13 weeks0 seconds6.5 KB0 b
https://upload.wikim...symbol%29.svg.png → run13 weeks0 seconds4.2 KB0 b
https://upload.wikim...ed_by_ChatGPT.jpg → run43 weeks0 seconds21.3 KB0 b
https://upload.wikim...advertisement.png → run10 weeks0 seconds11.9 KB0 b
https://upload.wikim...hallucination.png → run45 weeks0 seconds41.3 KB0 b
https://upload.wikim...t_James_Tamim.jpg → run23 weeks0 seconds16.7 KB0 b
https://upload.wikim..._workflow.svg.png → run9 weeks0 seconds19.3 KB0 b
https://upload.wikim...erything.webp.png → run9 weeks0 seconds12.9 KB0 b
https://upload.wikim...gpt_usage.svg.png → run9 weeks0 seconds4.8 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://en.wikipedia.org/wiki/ChatGPT → run2 minutes0 seconds179.8 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 → run3 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 → run3 weeks1 year44.2 KB0 b
https://en.wikipedia...ordmark-en-25.svg → run3 weeks1 year5.1 KB0 b
https://en.wikipedia...tagline-en-25.svg → run3 weeks1 year5.9 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 → run5 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 → run5 days1 year1.2 KB0 b
https://en.wikipedia...nify-clip-ltr.svg → run5 days1 year1.2 KB0 b
https://en.wikipedia...ges/sort_both.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://upload.wikim...symbol%29.svg.png → runimage13 weeks0 seconds6.5 KB0 b1.112 s
https://upload.wikim...symbol%29.svg.png → runimage13 weeks0 seconds4.2 KB0 b1.095 s
https://en.wikipedia.org/wiki/ChatGPT → runhtml2 minutes0 seconds179.8 KB0 b801 ms
https://upload.wikim...n-shackle.svg.png → runimage2 years0 seconds2.3 KB0 b568 ms
https://en.wikipedia...ordmark-en-25.svg → runsvg3 weeks1 year5.1 KB0 b370 ms
https://en.wikipedia...tagline-en-25.svg → runsvg3 weeks1 year5.9 KB0 b356 ms
https://en.wikipedia...ons/enwiki-25.svg → runsvg3 weeks1 year44.2 KB0 b346 ms
https://en.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes3.4 KB0 b290 ms
https://en.wikipedia...ia.org/w/load.php → runjavascript-1 second5 minutes22.4 KB0 b287 ms
https://en.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes26.1 KB0 b266 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...hallucination.png → runimage45 weeks0 seconds41.3 KB0 b
https://en.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes26.1 KB0 b
https://en.wikipedia...ia.org/w/load.php → runjavascript-1 second5 minutes22.4 KB0 b
https://upload.wikim...ed_by_ChatGPT.jpg → runimage43 weeks0 seconds21.3 KB0 b
https://upload.wikim..._workflow.svg.png → runimage9 weeks0 seconds19.3 KB0 b
https://upload.wikim...t_James_Tamim.jpg → runimage23 weeks0 seconds16.7 KB0 b
https://upload.wikim...erything.webp.png → runimage9 weeks0 seconds12.9 KB0 b
https://upload.wikim...advertisement.png → runimage10 weeks0 seconds11.9 KB0 b
https://upload.wikim...symbol%29.svg.png → runimage13 weeks0 seconds6.5 KB0 b
https://upload.wikim...gpt_usage.svg.png → runimage9 weeks0 seconds4.8 KB0 b