The Tor Browser is a modified version of Firefox that routes your internet traffic through the Tor (The Onion Router) network. Your traffic is encrypted in multiple layers and bounced through three randomly selected volunteer-run servers (relays) before reaching its destination. Each relay only knows the previous and next hop, making it extremely difficult to trace traffic back to the original user.
How Onion Routing Works
- The Tor client gets a list of available relays from a directory server.
- It selects three relays: a Guard (entry), a Middle relay, and an Exit relay.
- Your traffic is encrypted in three layers, like an onion.
- Each relay peels one layer of encryption and forwards the traffic to the next.
- The exit relay sends the traffic to the destination website. It sees only the exit relay's IP, not yours.
Tor vs VPN
| Feature | Tor | VPN |
|---|---|---|
| Anonymity level | Very high | High (depends on provider) |
| Speed | Very slow (3 relays) | Fast |
| Cost | Free | $3-12/month |
| Trust required | No single trusted party | Trust VPN provider |
| Can access .onion sites | Yes | No |
| ISP sees VPN usage | Yes (unless bridges used) | Yes |
Is Tor 100% Untraceable?
No. Tor is very strong but not perfect. Adversaries who can monitor both the entry and exit of the Tor network can potentially correlate traffic (a "global passive adversary" attack). Additionally, bad exit nodes can read unencrypted traffic. Using HTTPS within Tor eliminates the exit node risk for web browsing.
People Also Ask
- Is it illegal to browse Tor?
- No. The Tor Browser is legal in most countries. What matters is what you do while using it. Legal activities on Tor are fully permitted.
- Why is Tor considered the dark web?
- Tor enables access to .onion sites that are not indexed by normal search engines and only accessible through Tor. These sites collectively form the dark web. But Tor itself is also used for regular internet privacy.
Related: Tor vs VPN | What is a VPN? | Hide your IP