{"kind":"host","input":"flexireg.domains","report":{"host":"flexireg.domains","checkedAt":"2026-11-15T15:50:19.543Z","a":{"status":"found","values":["31.177.76.15","31.177.80.15"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2a02:2090:1:3::4","2a02:2090:1:4::4"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.flexireg.domains","a":{"status":"found","values":["31.177.76.15","31.177.80.15"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only"}},"readiness":{"grade":"C","summary":"Works over IPv6, with gaps: www doesn't fully work over IPv6; its mail servers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"flexireg.domains has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2a02:2090:1:3::4","result":"answers","port":443},{"address":"2a02:2090:1:4::4","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.flexireg.domains has no AAAA record."},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"relay1.flexireg.net","ipv6":false},{"host":"relay2.flexireg.net","ipv6":false}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"1 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns3-geo.nic.ru","ipv6":false},{"host":"ns4-geo.nic.ru","ipv6":false},{"host":"ns8-geo.nic.ru","ipv6":false},{"host":"ans1-moscow.nic.ru","ipv6":true}]}]},"https":{"status":"fail","problem":"certificate","summary":"The certificate served over IPv6 at 2a02:2090:1:3::4 isn't valid for flexireg.domains: ERR_TLS_CERT_ALTNAME_INVALID.","hops":[{"url":"https://flexireg.domains/","address":"2a02:2090:1:3::4","tls":"ERR_TLS_CERT_ALTNAME_INVALID"}]},"receiptId":"6l9VgD7pen","reused":true,"measuredAt":"2026-11-15T15:50:21.140Z"}