@jcjones, couldn’t we also see whether the challenge was made to the same IP address that was speaking ACME to us? That might also indirectly give some more information about the kind of authenticator that was used.
@jcjones, couldn’t we also see whether the challenge was made to the same IP address that was speaking ACME to us? That might also indirectly give some more information about the kind of authenticator that was used.