{"domain":"mail.active.domains","result":true,"measuredAt":"2026-11-10T17:40:51.450Z","receiptId":"gmVmKLMyp-","answer":{"kind":"host","input":"mail.active.domains","report":{"host":"mail.active.domains","checkedAt":"2026-11-10T17:40:50.627Z","a":{"status":"found","values":["77.88.21.37"],"ttl":300,"via":"Cloudflare","cname":["domain.mail.yandex.net","mail.yandex.ru"]},"aaaa":{"status":"found","values":["2a02:6b8::a4"],"ttl":300,"via":"Cloudflare","cname":["domain.mail.yandex.net","mail.yandex.ru"]},"verdict":"dual-stack"},"readiness":{"grade":"A","summary":"Website, mail and DNS all work over IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"mail.active.domains has an AAAA record and answers on it.","addresses":[{"address":"2a02:6b8::a4","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"mx.yandex.ru","ipv6":true}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ben.ns.cloudflare.com","ipv6":true},{"host":"zara.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"fail","problem":"certificate","summary":"The certificate served over IPv6 at 2a02:6b8::a4 isn't valid for mail.active.domains: ERR_TLS_CERT_ALTNAME_INVALID.","hops":[{"url":"https://mail.active.domains/","address":"2a02:6b8::a4","tls":"ERR_TLS_CERT_ALTNAME_INVALID"}]}},"states":[{"firstSeen":"2026-11-10T17:40:51.450Z","lastConfirmed":"2026-11-10T17:40:51.450Z","checks":1,"verdict":"dual-stack","grade":"A","web":"pass","www":null,"mail":"pass","dns":"pass","secondLook":null}]}