@Faket @siegi @fediversereport
It is already certified by the domain. The subdomain is arbitrary and serves no purpose other than being a name for a service/server/something. The end user must only pay attention to the domain and TLS certificate for the purpose of validation of legitimacy.
@inventor @siegi @fediversereport So? Are you saying that doing a social.admin.ch subdomain is a good thing? I don't understand your point TBH.