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

Tested 2026-07-27 21:39:55 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 weeks226.5 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 minutes27.1 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...-featured.svg.png → run30 weeks0 seconds2.8 KB0 b
https://upload.wikim...n-shackle.svg.png → run2 years0 seconds2.3 KB0 b
https://upload.wikim...ogressive.svg.png → run2 years0 seconds2.2 KB0 b
https://upload.wikim...wards_%283%29.png → run9 weeks0 seconds82.4 KB0 b
https://upload.wikim...signature.svg.png → run3 weeks0 seconds5.4 KB0 b
https://upload.wikim...%28cropped%29.jpg → run48 weeks0 seconds27.2 KB0 b
https://upload.wikim...lorSwiftApr09.jpg → run3 weeks0 seconds24.0 KB0 b
https://upload.wikim...wift_2011crop.jpg → run29 weeks0 seconds31.2 KB0 b
https://upload.wikim...our_2%2C_2013.jpg → run9 weeks0 seconds29.5 KB0 b
https://upload.wikim...7682880264%29.jpg → run1 year0 seconds17.0 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...wiki/Taylor_Swift → run5 minutes0 seconds381.8 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 seconds996 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 year5.8 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 → 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://upload.wikim...ck-gray-alt-2.svg → run10 years0 seconds2.3 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...-featured.svg.png → runimage30 weeks0 seconds2.8 KB0 b1.565 s
https://upload.wikim...n-shackle.svg.png → runimage2 years0 seconds2.3 KB0 b1.563 s
https://en.wikipedia...wiki/Taylor_Swift → runhtml5 minutes0 seconds381.8 KB0 b1.311 s
https://upload.wikim...ogressive.svg.png → runimage2 years0 seconds2.2 KB0 b772 ms
https://en.wikipedia...ons/enwiki-25.svg → runsvg3 weeks1 year44.2 KB0 b635 ms
https://en.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes27.1 KB0 b602 ms
https://en.wikipedia...ia.org/w/load.php → runjavascript-1 second5 minutes22.4 KB0 b561 ms
https://en.wikipedia...ordmark-en-25.svg → runsvg3 weeks1 year5.1 KB0 b533 ms
https://en.wikipedia...tagline-en-25.svg → runsvg3 weeks1 year5.8 KB0 b533 ms
https://en.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes3.4 KB0 b419 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...wards_%283%29.png → runimage9 weeks0 seconds82.4 KB0 b
https://upload.wikim...wift_2011crop.jpg → runimage29 weeks0 seconds31.2 KB0 b
https://upload.wikim...our_2%2C_2013.jpg → runimage9 weeks0 seconds29.5 KB0 b
https://upload.wikim...%28cropped%29.jpg → runimage48 weeks0 seconds27.2 KB0 b
https://en.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes27.1 KB0 b
https://upload.wikim...lorSwiftApr09.jpg → runimage3 weeks0 seconds24.0 KB0 b
https://en.wikipedia...ia.org/w/load.php → runjavascript-1 second5 minutes22.4 KB0 b
https://upload.wikim...7682880264%29.jpg → runimage1 year0 seconds17.0 KB0 b
https://upload.wikim...signature.svg.png → runimage3 weeks0 seconds5.4 KB0 b
https://en.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes3.4 KB0 b