Nerd mode
Nerd facts
13. Construction ahead
How this photo is delivered.
Now loaded
Open a media view to see what it used.
Photos
The page starts with the smallest useful image, then upgrades to sharper AVIF, WebP, or JPEG variants when the browser and screen can use them.
The fallback stays ordinary on purpose: older browsers still get a real image, and better displays can ask for wider-gamut or experimental HDR files when those exist.
AVIF · WebP · JPEG
Why there are choices
There is no single perfect file for every screen, browser, and connection. Browse stays light; inspect spends more only after the page has a reason.
These details show what the page can actually load, so the controls stay honest.
