@silverpill

> But what about simply parsing /api/v1/instance/peers response?

Oh, it does. That's how it found the .onion domains it has: http://demo.fedilist.com/instance?q=&ip=&software=&registrations=&onion=only

The only parsing it does of domain names is that it treats .onion domains specially: it doesn't try to resolve their hostnames before sending requests, it uses a different proxy, and it uses http instead of https.

If there are Tor sites that are in your peers list but that don't typically appear anywhere, you could try just going to http://demo.fedilist.com/instance/$domain. Most of the things the site shows are just instances that are up, and Tor sites seem to bounce around a lot. For example:

http://demo.fedilist.com/instance/recent-changes?host=rawrxd4mden7rmbobaftao3qjyxbrvj4rrooehkqxlqcsdtnnn2hndid.onion
vs.
http://demo.fedilist.com/instance/recent-changes?host=rawr-xd.club