Learn · Track 1

The journey of a tap

What happens between my tap and the screen changing?

The address bar is doing four jobs at once — here's each one
Updated Sep 26, 2026
Your phone knows a name, not an address — DNS is how it finds the site
Updated Sep 26, 2026
Every tap sends a tiny message to a stranger's computer — this is what's inside
Updated Sep 26, 2026
Where your tap lands: the always-on computer that answers — and can see your secrets
Updated Sep 26, 2026
An API is a menu of requests a server agrees to accept — order off it
Updated Sep 26, 2026
The dining room and the kitchen: which half of your app anyone can read
Updated Sep 26, 2026