How the Internet Works

The internet is a giant postal system for tiny packages of data.

When you load a website, your request gets chopped up into small chunks called packets, each stamped with an address (an IP address) like a postcard. Routers act like postal sorting stations, passing your packets from network to network until they reach the right server — which might be on the other side of the planet, all within a fraction of a second.

In real terms: DNS is the phonebook that turns a website name like 'example.com' into a numeric IP address computers can route to. HTTP is the standard 'form' your browser and the server fill out to request and deliver a page, and TCP is the mail-carrier protocol that makes sure every packet arrives, in order, without going missing.

Where this analogy breaks down: real postal mail takes days, while internet packets often take under 100 milliseconds — and unlike a single postcard, a single webpage can be broken into thousands of packets, all traveling by different routes and reassembled perfectly at the other end.