{"kind":"host","input":"zett.tel","report":{"host":"zett.tel","checkedAt":"2026-11-07T23:46:37.566Z","a":{"status":"found","values":["2.31.132.220"],"ttl":3600,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2a01:4f8:c016:445c::1"],"ttl":3600,"via":"Cloudflare","cname":[]},"verdict":"dual-stack"},"readiness":{"grade":"B","summary":"Works over IPv6, with one gap: its mail servers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"zett.tel has an AAAA record and answers on it.","addresses":[{"address":"2a01:4f8:c016:445c::1","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"mailserver.purelymail.com","ipv6":false}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"3 of 3 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"helium.ns.hetzner.de","ipv6":true},{"host":"hydrogen.ns.hetzner.com","ipv6":true},{"host":"oxygen.ns.hetzner.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 200.","hops":[{"url":"https://zett.tel/","address":"2a01:4f8:c016:445c::1","status":200,"tls":"valid"}]},"receiptId":"4xoiyz2LiI","reused":true,"measuredAt":"2026-11-07T23:46:38.096Z"}