{"kind":"host","input":"web.dev","report":{"host":"web.dev","checkedAt":"2026-11-02T12:03:04.949Z","a":{"status":"found","values":["216.239.32.27"],"ttl":36,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2001:4860:4802:32::1b"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.web.dev","a":{"status":"found","values":["172.253.122.102","172.253.122.113","172.253.122.100","172.253.122.138","172.253.122.139","172.253.122.101"],"ttl":300,"via":"Cloudflare","cname":["www3.l.google.com"]},"aaaa":{"status":"found","values":["2607:f8b0:4004:c1f::8a","2607:f8b0:4004:c1f::71","2607:f8b0:4004:c1f::66","2607:f8b0:4004:c1f::64"],"ttl":300,"via":"Cloudflare","cname":["www3.l.google.com"]},"verdict":"dual-stack"}},"readiness":{"grade":"A","summary":"Website, mail and DNS all work over IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"web.dev has an AAAA record and answers on it.","addresses":[{"address":"2001:4860:4802:32::1b","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.web.dev has 4 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2607:f8b0:4004:c1f::8a","result":"answers","port":443},{"address":"2607:f8b0:4004:c1f::71","result":"answers","port":443},{"address":"2607:f8b0:4004:c1f::66","result":"answers","port":443},{"address":"2607:f8b0:4004:c1f::64","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record."},{"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":"ns4.zdns.google","ipv6":true},{"host":"ns2.zdns.google","ipv6":true},{"host":"ns1.zdns.google","ipv6":true},{"host":"ns3.zdns.google","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 200.","hops":[{"url":"https://web.dev/","address":"2001:4860:4802:32::1b","status":200,"tls":"valid"}]},"receiptId":"Nl1St9-J28","reused":true,"measuredAt":"2026-11-02T12:03:05.237Z"}