A web page that tells you what your browser gave away the moment you arrived. No login, no form, no permission. Most pages do this. None of them tell you.
Your browser accepts cookies. Websites can write small files to your device that persist after you leave — files that identify you when you return, that follow you across sites, that remember what you looked at, what you almost bought, and how long you hesitated. We have not written one. Your browser would let this page write up to 10 GB to your device — a private room, ours alone, like the one given to every site you visit.
Hol up … 10 GB?
I think that refers to localStorage not cookies.