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

Tested 2026-07-28 02:23:16 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

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://vi.wikipedia...ia.org/w/load.php → run-1 second5 minutes21.2 KB0 b
https://vi.wikipedia...ia.org/w/load.php → run-1 second4 weeks26.8 KB0 b
https://vi.wikipedia...ia.org/w/load.php → run-1 second4 weeks18.1 KB0 b
https://vi.wikipedia...ia.org/w/load.php → run-1 second4 weeks305.2 KB0 b
https://vi.wikipedia...ia.org/w/load.php → run-1 second4 weeks26.5 KB0 b
https://vi.wikipedia...ia.org/w/load.php → run-1 second4 weeks3.0 KB0 b
https://meta.wikimed...a.org/w/index.php → run46 weeks0 seconds12.2 KB0 b
https://auth.wikimed...gin/checkLoggedIn → run-1 second0 seconds1.6 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://vi.wikipedia...ia.org/w/load.php → run-1 second5 minutes27.6 KB0 b
https://vi.wikipedia...ia.org/w/load.php → run-1 second5 minutes1.5 KB0 b
https://vi.wikipedia...ia.org/w/load.php → run-1 second5 minutes3.5 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://vi.wikipedia...ons/wikipedia.png → run3 weeks1 year14.3 KB0 b
https://upload.wikim...E1%BA%A3n.svg.png → run1 day0 seconds2.8 KB0 b
https://upload.wikim..._%28454045%29.jpg → run42 weeks0 seconds39.1 KB0 b
https://upload.wikim...incent%29.svg.png → run6 weeks0 seconds4.8 KB0 b
https://upload.wikim...28restored%29.jpg → run3 weeks0 seconds14.8 KB0 b
https://upload.wikim...28restored%29.jpg → run39 weeks0 seconds13.6 KB0 b
https://upload.wikim...ille_van_Gogh.JPG → run-1 second0 seconds11.1 KB0 b
https://upload.wikim...ntVanGoghFoto.jpg → run21 weeks0 seconds20.8 KB0 b
https://upload.wikim...uesmes_JPG001.jpg → run42 weeks0 seconds25.9 KB0 b
https://upload.wikim..._van_Gogh_016.jpg → run2 weeks0 seconds18.9 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://vi.wikipedia.../Vincent_van_Gogh → run2 days0 seconds140.2 KB0 b

Largest favicon files

1 file

The largest favicon files across the tested pages.

urltime since last modifiedcache timetransfersize
https://vi.wikipedia...con/wikipedia.ico → run3 weeks1 year2.0 KB0 b

Largest JSON files

1 file

The largest JSON files across the tested pages.

urltime since last modifiedcache timetransfersize
https://vi.wikipedia...dia.org/w/api.php → run-1 second1 hour4.9 KB0 b

Largest other files

1 file

The largest other files across the tested pages.

urltime since last modifiedcache timetransfersize
https://vi.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://vi.wikipedia...a-wordmark-en.svg → run3 weeks1 year3.7 KB0 b
https://vi.wikipedia...ia-tagline-vi.svg → run3 weeks1 year6.8 KB0 b
https://vi.wikipedia...ia.org/w/load.php → run-1 second4 weeks1.3 KB0 b
https://vi.wikipedia...ia.org/w/load.php → run-1 second4 weeks1.5 KB0 b
https://vi.wikipedia...n-progressive.svg → run5 days1 year1.2 KB0 b
https://vi.wikipedia...ia.org/w/load.php → run-1 second4 weeks1.3 KB0 b
https://vi.wikipedia...ia.org/w/load.php → run-1 second4 weeks1.5 KB0 b
https://vi.wikipedia...nify-clip-ltr.svg → run5 days1 year1.2 KB0 b
https://vi.wikipedia...r-progressive.svg → run5 days1 year1.2 KB0 b
https://upload.wikim...6/6c/PDF_icon.svg → run4 years0 seconds3.1 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..._%28454045%29.jpg → runimage42 weeks0 seconds39.1 KB0 b2.466 s
https://upload.wikim...E1%BA%A3n.svg.png → runimage1 day0 seconds2.8 KB0 b2.019 s
https://vi.wikipedia.../Vincent_van_Gogh → runhtml2 days0 seconds140.2 KB0 b720 ms
https://vi.wikipedia...ia-tagline-vi.svg → runsvg3 weeks1 year6.8 KB0 b252 ms
https://vi.wikipedia...a-wordmark-en.svg → runsvg3 weeks1 year3.7 KB0 b247 ms
https://vi.wikipedia...ons/wikipedia.png → runimage3 weeks1 year14.3 KB0 b243 ms
https://vi.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes1.5 KB0 b229 ms
https://vi.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes3.5 KB0 b227 ms
https://vi.wikipedia...ia.org/w/load.php → runjavascript-1 second5 minutes21.2 KB0 b224 ms
https://vi.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes27.6 KB0 b192 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..._%28454045%29.jpg → runimage42 weeks0 seconds39.1 KB0 b
https://vi.wikipedia...ia.org/w/load.php → runcss-1 second5 minutes27.6 KB0 b
https://upload.wikim...uesmes_JPG001.jpg → runimage42 weeks0 seconds25.9 KB0 b
https://vi.wikipedia...ia.org/w/load.php → runjavascript-1 second5 minutes21.2 KB0 b
https://upload.wikim...ntVanGoghFoto.jpg → runimage21 weeks0 seconds20.8 KB0 b
https://upload.wikim..._van_Gogh_016.jpg → runimage2 weeks0 seconds18.9 KB0 b
https://upload.wikim...28restored%29.jpg → runimage3 weeks0 seconds14.8 KB0 b
https://upload.wikim...28restored%29.jpg → runimage39 weeks0 seconds13.6 KB0 b
https://meta.wikimed...a.org/w/index.php → runjavascript46 weeks0 seconds12.2 KB0 b
https://upload.wikim...ille_van_Gogh.JPG → runimage-1 second0 seconds11.1 KB0 b