> […] the public name record just has to exist. Specifically a TXT record for _acme-challenge has to exist for the requested hostname. Or a CNAME of the reques

> […] the public name record just has to exist. Specifically a TXT record for _acme-challenge has to exist for the requested hostname. Or a CNAME of the requested hostname pointing somewhere else that you control: * https://dan.langille.org/2019/02/01/acme-domain-alias-mode/ https://dan.langille.org/2019/02/01/acme-domain-alias-mode/ * https://github.com/acmesh-official/acme.sh/wiki/DNS-alias-mode https://github.com/acmesh-official/acme.sh/wiki/DNS-alias-mo... * https://www.eff.org/deeplinks/2018/02/technical-deep-dive-securing-automation-acme-dns-challenge-validation https://www.eff.org/deeplinks/2018/02/technical-deep-dive-se... No A (or AAAA) records needed.