The Hidden Wiki is the name of the Wiki-based business that operates within the many censorship-resistant.Tor hidden services that anyone can edit anonymously. The homepage provides links to other .onion sites in the network directory.
The first Hidden Wiki was used because of PTLDs that could only be accessed using Tor or the Tor gateway. A directory of links to other secret services is provided on its homepage, including purported links to money laundering, contract killing, hired cyber-attacks, contraband chemicals, and bomb making. The remaining Wiki contained links to images of uncensored child pornography and abuse.