1 page analysed for mainpageSecondView.cjs.cjs

Tested 2026-07-27 23:22:08 using Firefox (script).(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

8 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 minutes22.3 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 weeks192.7 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second4 weeks28.1 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second4 weeks3.0 KB0 b
https://en.wikipedia...ia.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://en.wikipedia...ia.org/w/load.php → run-1 second5 minutes24.8 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second5 minutes3.2 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...No_42_Trolley.jpg → run10 minutes0 seconds7.9 KB0 b
https://upload.wikim..._dated_1921_l.jpg → run11 minutes0 seconds21.9 KB0 b
https://upload.wikim..._of_Education.jpg → run1 week0 seconds23.9 KB0 b
https://upload.wikim...9839443910%29.jpg → run9 minutes0 seconds13.2 KB0 b
https://upload.wikim...2873267013%29.jpg → run10 minutes0 seconds15.6 KB0 b
https://upload.wikim...n_oxide_layer.jpg → run10 minutes0 seconds62.7 KB0 b
https://upload.wikim...mons-logo.svg.png → run2 years0 seconds3.1 KB0 b
https://upload.wikim...2020-icon.svg.png → run8 weeks0 seconds4.2 KB0 b
https://upload.wikim...nity_Logo.svg.png → run8 weeks0 seconds3.6 KB0 b
https://upload.wikim...ooks-logo.svg.png → run4 weeks0 seconds3.7 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/Main_Page → run1 second0 seconds56.3 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 seconds1012 B0 b

Largest SVG files

6 files

The largest SVG files across the tested pages.

urltime since last modifiedcache timetransfersize
https://en.wikipedia...ons/enwiki-25.svg → run3 weeks1 year44.1 KB0 b
https://en.wikipedia...ordmark-en-25.svg → run3 weeks1 year4.9 KB0 b
https://en.wikipedia...tagline-en-25.svg → run3 weeks1 year5.7 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 weeks1.3 KB0 b
https://en.wikipedia...ia.org/w/load.php → run-1 second4 weeks1.6 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...No_42_Trolley.jpg → runimage10 minutes0 seconds7.9 KB0 b27.708 s
https://upload.wikim..._of_Education.jpg → runimage1 week0 seconds23.9 KB0 b580 ms
https://upload.wikim..._dated_1921_l.jpg → runimage11 minutes0 seconds21.9 KB0 b421 ms
https://en.wikipedia...tagline-en-25.svg → runsvg3 weeks1 year5.7 KB0 b232 ms
https://en.wikipedia...ordmark-en-25.svg → runsvg3 weeks1 year4.9 KB0 b227 ms
https://en.wikipedia...ons/enwiki-25.svg → runsvg3 weeks1 year44.1 KB0 b224 ms
https://en.wikipedia.org/wiki/Main_Page → runhtml1 second0 seconds56.3 KB0 b171 ms
https://en.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes3.2 KB0 b169 ms
https://en.wikipedia...ia.org/w/load.php → runjavascript-1 second5 minutes22.3 KB0 b164 ms
https://en.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes24.8 KB0 b136 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...n_oxide_layer.jpg → runimage10 minutes0 seconds62.7 KB0 b
https://en.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes24.8 KB0 b
https://upload.wikim..._of_Education.jpg → runimage1 week0 seconds23.9 KB0 b
https://en.wikipedia...ia.org/w/load.php → runjavascript-1 second5 minutes22.3 KB0 b
https://upload.wikim..._dated_1921_l.jpg → runimage11 minutes0 seconds21.9 KB0 b
https://upload.wikim...2873267013%29.jpg → runimage10 minutes0 seconds15.6 KB0 b
https://upload.wikim...9839443910%29.jpg → runimage9 minutes0 seconds13.2 KB0 b
https://upload.wikim...No_42_Trolley.jpg → runimage10 minutes0 seconds7.9 KB0 b
https://upload.wikim...2020-icon.svg.png → runimage8 weeks0 seconds4.2 KB0 b
https://upload.wikim...ooks-logo.svg.png → runimage4 weeks0 seconds3.7 KB0 b