How the internet works · 10 of 101 / 3
Browser fingerprinting
The conceptHow a website still knows you after you clear your cookies
Browser fingerprinting identifies your device by measuring many ordinary details about it instead of saving a file on it. Your browser version, language, screen size, fonts and graphics chip are each common on their own.
But together they form a combination that very few other devices share. There is nothing stored to delete, so clearing cookies doesn't remove it.