17
List of Federated Instances
(feddit.it)
A community to talk about the Fediverse and all it's related services using ActivityPub (Mastodon, Lemmy, KBin, etc).
If you wanted to get help with moderating your own community then head over to !moderators@lemmy.world!
Learn more at these websites: Join The Fediverse Wiki, Fediverse.info, Wikipedia Page, The Federation Info (Stats), FediDB (Stats), Sub Rehab (Reddit Migration), Search Lemmy
When viewing an instance's main page in a web browser, scroll all the way to the bottom and click on "Instances". That will show all instances federated with, or blocked by, the given instance.
I'm not sure I can answer your other questions, though you might be interested in https://fba.ryona.agency. It will let you enter an instance and see who is blocking it. For example, here are the instances blocking my home instance, sh.itjust.works: https://fba.ryona.agency/?domain=sh.itjust.works
This is very helpful. Unfortunately the source code is not available... How did you find this service? Maybe you can point me to some other resource
Someone linked it in a comment a few months ago, and I happened to bookmark it.
Here are a few other sites that might be interesting: