{"kind":"host","input":"zaku.cat","report":{"host":"zaku.cat","checkedAt":"2026-11-03T16:33:56.991Z","a":{"status":"found","values":["217.160.0.115"],"ttl":3600,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2001:8d8:100f:f000::2bb"],"ttl":3600,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.zaku.cat","a":{"status":"found","values":["217.160.0.115"],"ttl":3600,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2001:8d8:100f:f000::2bb"],"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":"zaku.cat has an AAAA record and answers on it.","addresses":[{"address":"2001:8d8:100f:f000::2bb","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.zaku.cat has an AAAA record and answers on it.","addresses":[{"address":"2001:8d8:100f:f000::2bb","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":"mx01.ionos.es","ipv6":false},{"host":"mx00.ionos.es","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":"ns1106.ui-dns.com","ipv6":true},{"host":"ns1024.ui-dns.de","ipv6":true},{"host":"ns1061.ui-dns.biz","ipv6":true},{"host":"ns1039.ui-dns.org","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 200.","hops":[{"url":"https://zaku.cat/","address":"2001:8d8:100f:f000::2bb","status":200,"tls":"valid"}]},"receiptId":"z9ShXM2p1W","reused":true,"measuredAt":"2026-11-03T16:33:57.529Z"}