{"kind":"host","input":"naucsa.app","report":{"host":"naucsa.app","checkedAt":"2026-10-31T02:21:46.571Z","a":{"status":"found","values":["193.163.77.236"],"ttl":1800,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2a10:9c80::193:163:77:236"],"ttl":1800,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.naucsa.app","a":{"status":"found","values":["193.163.77.236"],"ttl":1800,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2a10:9c80::193:163:77:236"],"ttl":1800,"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":"naucsa.app has an AAAA record and answers on it.","addresses":[{"address":"2a10:9c80::193:163:77:236","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.naucsa.app has an AAAA record and answers on it.","addresses":[{"address":"2a10:9c80::193:163:77:236","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":"mx1.hostcreators.sk","ipv6":false},{"host":"mx2.hostcreators.sk","ipv6":false}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns1.hostcreators.sk","ipv6":true},{"host":"ns2.hostcreators.sk","ipv6":true},{"host":"ns3.hostcreators.sk","ipv6":true},{"host":"ns4.hostcreators.eu","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 200.","hops":[{"url":"https://naucsa.app/","address":"2a10:9c80::193:163:77:236","status":200,"tls":"valid"}]},"receiptId":"VSumhE1E2m"}