{"domain":"avonet.cz","result":true,"measuredAt":"2026-11-15T15:48:13.321Z","receiptId":"QF0KrGkYcW","answer":{"kind":"host","input":"avonet.cz","report":{"host":"avonet.cz","checkedAt":"2026-11-15T15:48:12.591Z","a":{"status":"found","values":["217.112.162.40"],"ttl":3600,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2a00:6500:0:11::eb:0"],"ttl":3600,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.avonet.cz","a":{"status":"found","values":["217.112.162.40"],"ttl":3600,"via":"Cloudflare","cname":["virt.avonet.cz"]},"aaaa":{"status":"found","values":["2a00:6500:0:11::eb:0"],"ttl":3600,"via":"Cloudflare","cname":["virt.avonet.cz"]},"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":"avonet.cz has an AAAA record and answers on it.","addresses":[{"address":"2a00:6500:0:11::eb:0","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.avonet.cz has an AAAA record and answers on it.","addresses":[{"address":"2a00:6500:0:11::eb:0","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"partial","detail":"At least one mail server has no AAAA record (1 of 3 checked do).","hosts":[{"host":"ms.avonet.cz","ipv6":true},{"host":"mx1.avonet.cz","ipv6":false},{"host":"spool.avonet.cz","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":"ns.avonet.cz","ipv6":true},{"host":"sns.avonet.cz","ipv6":true},{"host":"tns.avonet.cz","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 200.","hops":[{"url":"https://avonet.cz/","address":"2a00:6500:0:11::eb:0","status":200,"tls":"valid"}]}},"states":[{"firstSeen":"2026-11-04T13:04:46.545Z","lastConfirmed":"2026-11-15T15:48:13.321Z","checks":3,"verdict":"dual-stack","grade":"B","web":"pass","www":"pass","mail":"partial","dns":"pass","secondLook":null}]}