Alec Muffet has done a lot of work to get Facebook running on TOR and he&#x27;s a true believer. I really enjoyed working with him when I was at Facebook. He also did a lot of work to get .onion domains to be recognized by registrars as a special purpose domain name. This let us issue certificates on .onion.<p>I don&#x27;t know if the story behind the facebookcorewwwi.onion domain name itself has been talked about much, but we wanted a memorable name for the domain so we took a new cluster that hadn&#x27;t been put in production yet and threw something like 500k cores at brute forcing onion names till we had a memorable domain name. Alec had a script that looked for hashes that started with facebook and then he picked the one that seemed to fit the most. And that&#x27;s how we have facebookcorewwwi.onion now.