how to know an instance is gone?

I have been posting to a community on lemmy.fmhy.ml for a while now. Someone notified me that since it’s down no one else will see my posts. I assume that only people on my instance can see them. Connect app won’t let me post there but doesn’t tell me why, and I’ve asked about that in its community. The web page lets me post there but doesn’t tell me that the instance is gone. I would never have known if someone didn’t tell me. How am I supposed to know this?

Edit - it was [email protected]
Edit2 - I think if you’re on the same instance as me, lemm.ee, then you can see my stuff but no one else can.

iHUNTcriminals ,

I see your posts. From oct 28th

GrayBackgroundMusic OP ,

You’re on lemm.ee, just like me. I think that’s the key.

willya ,
@willya@lemmyf.uk avatar

What is it and I’ll tell you what the signs would be to me, but that instance went a way months ago.

GrayBackgroundMusic OP ,
willya ,
@willya@lemmyf.uk avatar

My instance must have never cached it. Can’t see it.

skankhunt42 ,
@skankhunt42@lemmy.ca avatar

I can see 3 month old posts there. Nothing new.

GrayBackgroundMusic OP ,

And I’ve been posting 1/day for the last week or so.

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