{"kind":"host","input":"t-online.de","report":{"host":"t-online.de","checkedAt":"2026-10-30T23:37:39.086Z","a":{"status":"found","values":["34.246.241.220","52.209.116.123","54.217.253.146"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.t-online.de","a":{"status":"found","values":["52.85.193.84","52.85.193.57","52.85.193.68","52.85.193.116"],"ttl":15,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2600:9000:215a:3c00:f:f903:2f40:93a1","2600:9000:215a:d000:f:f903:2f40:93a1","2600:9000:215a:dc00:f:f903:2f40:93a1","2600:9000:215a:400:f:f903:2f40:93a1","2600:9000:215a:5000:f:f903:2f40:93a1","2600:9000:215a:8600:f:f903:2f40:93a1","2600:9000:215a:3000:f:f903:2f40:93a1","2600:9000:215a:a800:f:f903:2f40:93a1"],"ttl":60,"via":"Cloudflare","cname":[]},"verdict":"dual-stack"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"t-online.de has no AAAA record."},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.t-online.de has 4 IPv6 addresses and answers on every one we tested (4 more not tested).","addresses":[{"address":"2600:9000:215a:3c00:f:f903:2f40:93a1","result":"answers","port":443},{"address":"2600:9000:215a:d000:f:f903:2f40:93a1","result":"answers","port":443},{"address":"2600:9000:215a:dc00:f:f903:2f40:93a1","result":"answers","port":443},{"address":"2600:9000:215a:400:f:f903:2f40:93a1","result":"answers","port":443},{"address":"2600:9000:215a:5000:f:f903:2f40:93a1","result":"not tested"},{"address":"2600:9000:215a:8600:f:f903:2f40:93a1","result":"not tested"},{"address":"2600:9000:215a:3000:f:f903:2f40:93a1","result":"not tested"},{"address":"2600:9000:215a:a800:f:f903:2f40:93a1","result":"not tested"}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"mx00.t-online.de","ipv6":false},{"host":"mx02.t-online.de","ipv6":false},{"host":"mx01.t-online.de","ipv6":false},{"host":"mx03.t-online.de","ipv6":false}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"5 of 5 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"dns20.dns.t-ipnet.de","ipv6":true},{"host":"dns02.dns.t-ipnet.de","ipv6":true},{"host":"dns50.dns.t-ipnet.de","ipv6":true},{"host":"dns00.dns.t-ipnet.de","ipv6":true},{"host":"pns.dtag.de","ipv6":true}]}]},"receiptId":"HHVQW87Ije"}