We have https://isrobosatsdown.templeofsats.org/status/robodex kindly maintained by nostr:nprofile1qqs8gqqkyq5hqdw65c28tsrfly9kj5qg0l4q6qf5k72l436ccd88rygprpmhxue69uhhyetvv9ujuumwdae8gtnnda3kjctvqyd8wumn8ghj7un9d3shjtnwdaehgunsd3jkyuewvdhk6qgmwaehxw309ahx7um5wgh8xamfwdej6etwd9nk6cfwvd5qywaxpj
About the notification, 50% of the times its just Tor not properly establishing the route and causes a situation where the request neither success or fail. But you are right that the client should control and notify about it.
I just created this https://github.com/RoboSats/robosats/issues/2106