Amethyst usually shows you which relays a post is on, it shows you the little icon underneath your avatar for posts. Nostrudel.ninja is also pretty good at showing you that kind of stuff, though keep in mind clients will only show your post is on relays that it knows to check with.
How do I tell if my posts are getting to other "relays" ? nostr:npub17e6l6tp789hwwnugm3l6zmgfffh369lv08yfuwj452hflhc530xq36epc7
Discussion
Oh okay so the little icons under the my avatar on my posts
Yup! If you press them you can check which one they are, though you'll come to recognize the little icons after a while lol
Right now it only shows two but in my settings I have four setup??
Yeah it can be a bit odd, Amethyst in particular doesn't always post to all relays, especially if your current Internet connection isn't great. Some relays are paid, etc.
nos.lol is the biggest free one I think, nostr.mom is pretty high up there too, I run n.ok0.org, it's not large but it's free and takes notes
If you go to relays Amethyst will show you if the relays are paid relays or not, paid relays won't accept notes until you pay them.
Oh gotcha thanks for letting me know