Cyber Mechanics

Why Does Tor Use Three Relays?

Name: Why Does Tor Use Three Relays?
Uploaded: 2026-10-03T01:36:08+00:00
Description: Why does Tor use a guard, middle relay, and exit instead of one direct proxy? Each position receives enough information to forward traffic, but not the complete route. The guard sees the client side, the middle sees adjacent relays, and the exit sees the onward destination. That separation is the mechanism: distributed knowledge-not invisibility and not magic.

Dr. Ibrar AhmedOctober 3, 20263 min read

Why does Tor use a guard, middle relay, and exit instead of one direct proxy? Each position receives enough information to forward traffic, but not the complete route. The guard sees the client side, the middle sees adjacent relays, and the exit sees the onward destination. That separation is the mechanism: distributed knowledge-not invisibility and not magic.

Watch the full visual explanation: Source: Tor Project - Relay types Educational cybersecurity content. No access or evasion instructions.

Watch the video for the full walkthrough. Use this page when you want the argument in writing without scrubbing the timeline.