I know about https://<home_instance>/instances, but this only shows which other instances my home instance has defederated from. To check which other instances have defederated from my home instances, I would have to check https://<other_instance>/instances for each and every other instance, which is not feasible.

Is there a one stop shop for checking which other instances have defederated from my home instance?

I've tried searching for such a tool, but most search results are about https://<home_instance>/instances. I've also seen mentions of https://defed.xyz/, but that site doesn't seem to do anything - when I visit that URL, all I see is a broken image placeholder.

Thank you!

This may be of internet to you https://phiresky.github.io/lemmy-federation-state/site?domain=lemmy.horwood.cloud

Very handy - thank you!

For those who don't feel like clicking that link, it's a web page where you enter your home instance's URL, and then it lists other instances in four categories:

• Dead instances - Instances that have not been seen for 2 days (I believe this is where other instances that have defederated with the home instance show up)
• Failing instances - Instances where the last outgoing event failed to send
• Lagging instances - Instances where send is working but last send was at least 10 minutes ago. This is also the case if no activity has happened on your instance in the last 10 minutes.
• Up to date instances - Instances where sends are succeeding as expected