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

Tested 2026-09-20 13:20:08 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

10 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://it.wikipedia...ia.org/w/load.php → run-1 second5 minutes22.4 KB0 b
https://it.wikipedia...ia.org/w/load.php → run-1 second4 weeks4.3 KB0 b
https://it.wikipedia...ia.org/w/load.php → run-1 second4 weeks18.4 KB0 b
https://it.wikipedia...ia.org/w/load.php → run-1 second4 weeks332.3 KB0 b
https://it.wikipedia...ia.org/w/load.php → run-1 second4 weeks26.4 KB0 b
https://it.wikipedia...ia.org/w/load.php → run-1 second4 weeks3.0 KB0 b
https://it.wikipedia...ia.org/w/load.php → run-1 second4 weeks1.6 KB0 b
https://en.wikipedia...a.org/w/index.php → run26 weeks0 seconds9.1 KB0 b
https://auth.wikimed...gin/checkLoggedIn → run-1 second0 seconds1.6 KB0 b
https://meta.wikimed...a.org/w/index.php → run-1 second0 seconds2.8 KB0 b

Largest CSS files

3 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://it.wikipedia...ia.org/w/load.php → run-1 second5 minutes26.5 KB0 b
https://it.wikipedia...ia.org/w/load.php → run-1 second5 minutes2.4 KB0 b
https://en.wikipedia...a.org/w/index.php → run2 years0 seconds3.1 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://it.wikipedia...ons/wikipedia.png → run10 weeks1 year14.3 KB0 b
https://thumb.wikime...isambigua.svg.png → run17 weeks0 seconds2.9 KB0 b
https://thumb.wikime...282016%29.svg.png → run6 weeks0 seconds3.7 KB0 b
https://thumb.wikime...viale_mazzini.JPG → run5 weeks0 seconds30.3 KB0 b
https://thumb.wikime..._of_Italy.svg.png → run7 weeks0 seconds2.3 KB0 b
https://thumb.wikime...icon_mgx2.svg.png → run6 weeks0 seconds2.8 KB0 b
https://it.wikipedia...uch/wikipedia.png → run10 weeks1 year2.2 KB0 b
https://thumb.wikime...blackandwhite.png → run1 week0 seconds2.8 KB0 b
https://upload.wikim...seWindow19x19.png → run2 years0 seconds2.8 KB0 b
https://upload.wikim...anner-Bg-2017.jpg → run3 weeks0 seconds35.1 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://it.wikipedia.org/wiki/Rai → run2 hours0 seconds187.3 KB0 b

Largest favicon files

1 file

The largest favicon files across the tested pages.

urltime since last modifiedcache timetransfersize
https://it.wikipedia...con/wikipedia.ico → run10 weeks1 year2.0 KB0 b

Largest other files

1 file

The largest other files across the tested pages.

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

Largest SVG files

10 files

The largest SVG files across the tested pages.

urltime since last modifiedcache timetransfersize
https://it.wikipedia...a-wordmark-en.svg → run10 weeks1 year3.7 KB0 b
https://it.wikipedia...ia-tagline-it.svg → run6 weeks1 year4.1 KB0 b
https://it.wikipedia...ia.org/w/load.php → run-1 second4 weeks1.3 KB0 b
https://it.wikipedia...ia.org/w/load.php → run-1 second4 weeks1.5 KB0 b
https://it.wikipedia...n-progressive.svg → run5 days1 year1.2 KB0 b
https://it.wikipedia...ia.org/w/load.php → run-1 second4 weeks1.3 KB0 b
https://it.wikipedia...r-progressive.svg → run5 days1 year1.2 KB0 b
https://it.wikipedia...nify-clip-ltr.svg → run5 days1 year1.2 KB0 b
https://it.wikipedia...ia.org/w/load.php → run-1 second4 weeks1.3 KB0 b
https://it.wikipedia...ia.org/w/load.php → run-1 second4 weeks1.4 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://it.wikipedia.org/wiki/Rai → runhtml2 hours0 seconds187.3 KB0 b908 ms
https://it.wikipedia...ons/wikipedia.png → runimage10 weeks1 year14.3 KB0 b436 ms
https://it.wikipedia...ia-tagline-it.svg → runsvg6 weeks1 year4.1 KB0 b434 ms
https://it.wikipedia...a-wordmark-en.svg → runsvg10 weeks1 year3.7 KB0 b432 ms
https://it.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes2.4 KB0 b424 ms
https://it.wikipedia...ia.org/w/load.php → runjavascript-1 second5 minutes22.4 KB0 b423 ms
https://it.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes26.5 KB0 b399 ms
https://it.wikipedia...n-progressive.svg → runsvg5 days1 year1.2 KB0 b105 ms
https://it.wikipedia...ia.org/w/load.php → runsvg-1 second4 weeks1.5 KB0 b104 ms
https://it.wikipedia...ia.org/w/load.php → runsvg-1 second4 weeks1.3 KB0 b100 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...anner-Bg-2017.jpg → runimage3 weeks0 seconds35.1 KB0 b
https://thumb.wikime...viale_mazzini.JPG → runimage5 weeks0 seconds30.3 KB0 b
https://it.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes26.5 KB0 b
https://it.wikipedia...ia.org/w/load.php → runjavascript-1 second5 minutes22.4 KB0 b
https://en.wikipedia...a.org/w/index.php → runjavascript26 weeks0 seconds9.1 KB0 b
https://thumb.wikime...282016%29.svg.png → runimage6 weeks0 seconds3.7 KB0 b
https://en.wikipedia...a.org/w/index.php → runcss2 years0 seconds3.1 KB0 b
https://thumb.wikime...isambigua.svg.png → runimage17 weeks0 seconds2.9 KB0 b
https://thumb.wikime...blackandwhite.png → runimage1 week0 seconds2.8 KB0 b
https://thumb.wikime...icon_mgx2.svg.png → runimage6 weeks0 seconds2.8 KB0 b