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Tor

Also calledtor browserthe onion router
Definition

Tor is a free network and browser that sends your traffic through three volunteer-run relays, each adding a layer of encryption, so no single relay knows both who you are and what you are visiting.

Explanation

In depth

Tor Browser picks a path through three relays: a guard that knows your address but not your destination, a middle relay that knows neither, and an exit that knows the destination but not who you are. Your traffic is wrapped in three layers of encryption and each relay peels one. Websites see the exit relay's address, which is public, so many sites recognise Tor traffic and some challenge or block it. The price of this design is speed: three hops around the world, run by volunteers, are slower than a single proxy or VPN server. A web proxy is a single hop. The proxy operator sees both who connected and which pages were opened, and a website sees the proxy's address. We opened the Tor Project's own checker, check.torproject.org, through AnyProxy's Virginia region: it answered 'Sorry. You are not using Tor.' and showed the proxy's address, not a Tor exit. That is the right answer. Use Tor when hiding who you are from the service and the network matters more than speed; use a web proxy or VPN for quick access to a blocked site where you trust the operator. Some countries block Tor's public relays; bridges exist for that.

In practice

Tor in the real world

Tor sends your traffic through three volunteer relays so no single relay knows both who you are and where you are going. The Tor Project publishes daily user estimates by country on Tor Metrics, which show usage jumping when countries tighten censorship. Governments respond in turn — Russia blocked the Tor Project's website and many relays in December 2021 — which is why Tor offers bridges for censored networks.

Sources: Tor Metrics — users by country · Global Voices — Russia blocks Tor website (2021)

We checked

A web proxy is not Tor

check.torproject.org opened through AnyProxy Virginia showing a crossed-out onion and 'Sorry. You are not using Tor.', IP hidden

Tor Project's check.torproject.org through AnyProxy

Worked · US exit · 2026-10-15

Page loads and says 'Sorry. A single-hop web proxy is not Tor.

Questions about Tor

Is Tor slower than a web proxy?
Usually, because traffic passes through three relays around the world. It gives stronger anonymity in return.
Can I use Tor through AnyProxy?
No. Opening torproject.org pages through a web proxy just shows those pages; it does not route you through Tor. Tor needs Tor Browser or another Tor client running on your device.
Is Tor illegal?
Not in most countries, but some block it or restrict its use. Check local law before relying on it.

Related terms

Bridge relayA Tor bridge is a Tor entry relay whose address is not published in the public relay list, so networks that block the known Tor relays cannot easily block it.ObfuscationObfuscation means disguising a VPN or proxy connection so that network filters cannot recognise what kind of traffic it is and block it.SOCKS proxyA SOCKS proxy relays raw network connections for any app without understanding what is inside them; SOCKS5 can also carry UDP.ProxyA proxy is a server that makes network requests for you and passes the answers back, so the site you reach deals with the proxy instead of your device.

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