well not exactly a DNS record that could be linked to your LE account key, pretty much similar to webroot then it could work, maybe also allow email auth (with the admin mails and/or the whois mail) for manual mode.
well not exactly a DNS record that could be linked to your LE account key, pretty much similar to webroot then it could work, maybe also allow email auth (with the admin mails and/or the whois mail) for manual mode.