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Tor encyclopedia — learning path 2026

Tor explained: routing, onion services, and bridges

Start with what Tor is, then read how three-hop onion routing, onion services, bridges, and Tor Browser work. These are self-contained encyclopedia articles, not a market or link dump. Practical steps live in the Tor guides, concise definitions in the Tor glossary, and editorial records in the market catalog and service directory.

Suggested Tor learning path Five ordered steps from what Tor is, through onion routing, onion services and bridges, to onion directories and why they exist. 01 What is Tor? Overlay network, not a “dark browser” 02 Onion routing Three hops, layered encryption 03 Onion services Addresses without a public IP 04 Tor bridges When the path is blocked 05 Onion directories Why directories still get written 01 What is Tor? Overlay network, not a “dark browser” 02 Onion routing Three hops, layered encryption 03 Onion services Addresses without a public IP 04 Tor bridges When the path is blocked 05 Onion directories Why directories still get written
Learn path: what Tor is, how circuits hide the hop, then services, bridges, and why directories still exist.

Start here: Tor encyclopedia path

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Onion Routing: How Tor Works Technically

Onion routing explained: layered encryption, guard, middle, and exit relays, what each hop sees, and why that is not a substitute for HTTPS.

More Tor explainers

6 articles
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Is Tor legal in Europe?

Tor is generally lawful in the EU, UK, and most of Western Europe, while unlawful activity remains unlawful. Restrictions differ in Russia and Belarus. Not legal advice.

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Harm Reduction on Tor: Testing and Safety

Harm reduction for Tor readers: reagent kits, fentanyl strips, PsychonautWiki, Erowid, TripSit, and Dread safety threads — public health, not a buyer’s walkthrough.