I2P

The Invisible Internet Project. A decentralized, encrypted network layer that routes traffic through volunteer-operated nodes, designed for anonymous communication and resistant to traffic analysis. Unlike Tor's onion routing, I2P uses a garlic routing model where messages are bundled together, making correlation attacks harder. Operates separately from the public internet; you need I2P software to access it. Hosts .i2p domains (eepsites) that exist only within the network. Used by journalists, activists, privacy-conscious developers, and communities operating outside mainstream infrastructure. I2P is older than Tor (launched 2003) but smaller and less audited. The anonymity depends on network size and user behavior—small I2P populations can make de-anonymization easier than Tor's scale. No direct relationship to domain registration on the clearnet, but relevant for operators planning parallel presence or understanding decentralized naming systems. I2P doesn't solve jurisdictional problems; it hides location and identity from network observers, not from determined state actors with other vectors.