How does Tor Browser work?

Tor Browser Interface

Tor distributes your traffic over a network that consists of nodes (or relays) — thousands of servers that are created and maintained by volunteers to ensure security and anonymity. Every time you connect to Tor, it builds the fastest and safest route, which includes three nodes:

Input node — used when connecting. It sees your IP address, but it doesn’t see what you’re connecting to.

The middle node is the one to which the Tor client itself connects. It also doesn’t see your IP address or the domain you are connecting to, but it sees the input node and the traffic direction.

The exit node is the point from which your traffic leaves the Tor network and is redirected to the destination domain. This node only knows what you are connecting to.

All nodes are selected randomly and change periodically.