Onion links are unique web addresses that end in the .onion domain. They can only be accessed using the Tor browser. These sites are hosted on the Tor network, an infrastructure designed for strong anonymity and censorship resistance.

Each Onion address is a long, randomly generated string of characters, making it difficult to remember and impossible to guess.

Example of an Onion Link: http://u2uaeeuh2hnvdo24jaojizy3x6j6r52v7w3er5meegjlgkk3lmhrilid.onion

Because of their complexity, users typically rely on trusted directories or community forums to find legitimate links.