= ACME = <> <> == IETF == Automatic Certificate Management Environment (ACME) draft-ietf-acme-acme-18 December 20, 2018 https://tools.ietf.org/html/draft-ietf-acme-acme-18 https://datatracker.ietf.org/doc/draft-ietf-acme-acme/?include_text=1 DNS Challenge Validation [[/Validation]] == HTTPS == https://tools.ietf.org/html/rfc2818 Internet X.509 Public Key Infrastructure Certificate and CRL Profile https://tools.ietf.org/html/rfc2459 == link == [[Letsencrypt/WildCardCertificate]] [[/WildCardCertificate]]