- https://youtube-dl.org (still up, has executables and source)
- https://youtube-dl.org/latest
- https://web.archive.org/web/20201019113254/https://github.com/ytdl-org/youtube-dl/issues - snapshot of oficial repo before takedown, contains the issues and pull requests
- https://source.netsyms.com/Mirrors/l1ving_youtube-dl
- https://git.datahoarder.dev/whalehub/l1ving_youtube-dl
- https://gitea.datahoarding.agency/ZenulAbidin/youtube-dl
- https://youtube-dl-sources.org - awesome list of official and unofficial forks, mirrors and backups
This archive has the right tarball, where the signature verifies: https://cache.tehsausage.com/ytdl/ . EDIT: looks like the website was fixed now, too, with the correct tarball back in place for now. the new website still doesn't link to the irc channel anymore, which is #youtube-dl on freenode.