Why did you choose audio3 as your “certificate check” host instead the Broadcastify calls api host?
The audio3 server is completely decoupled from anything calls related, and actually runs a different ssl certificate, expiration, and CA than the calls API infrastructure. It is an icecast master server, and really doesn’t have a need to support SSL since it doesn’t support listener clients.
Since that episode back in 2022 the calls api infrastructure automatically renews SSL certificates seamlessly.