Why YSK: Choosing an instance with defederation policies you’re most comfortable with is important to make your Fediverse experience smooth in the long run.
Here is a chart showing the defederation count of each instance.
| Instance | Defederated with how many other instances | 
|---|---|
| beehaw.org | 405 | 
| feddit.de | 101 | 
| lemmy.world | 63 | 
| lemmy.ml | 44 | 
| sh.itjust.works | 4 | 
| exploding-heads.com | 3 | 
You can get it by going to the instance’s instance list and scrolling/Ctrl+Fing down to “Blocked Instances”. To find the instance list, go to https://your-instance.url/instances, for example, https://lemmy.world/instances



If instance.c has defederated with instance.a and instance.b, instance.a can still comment and post on communities from instance.c—but neither instance.c nor instance.b can see those posts and comments.