Cookie Crumbs: What Websites Remember About You

Imagine you walk into a shop every week. One day the shopkeeper says, 'Oh, you always buy apple juice — shall I grab one for you?' That feels useful, right? Websites do something very similar. They use tiny files to remember things about you. Have you ever noticed that a website already knows your name when you visit it again? Or that it remembered what was in your shopping basket? Today we are going to find out how that happens.