{"kind":"host","input":"w3.org","report":{"host":"w3.org","checkedAt":"2026-10-30T23:35:42.362Z","a":{"status":"found","values":["104.18.22.19","104.18.23.19"],"ttl":199,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700::6812:1713","2606:4700::6812:1613"],"ttl":194,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.w3.org","a":{"status":"found","values":["104.18.22.19","104.18.23.19"],"ttl":171,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700::6812:1613","2606:4700::6812:1713"],"ttl":135,"via":"Cloudflare","cname":[]},"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":"w3.org has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700::6812:1713","result":"answers","port":443},{"address":"2606:4700::6812:1613","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.w3.org has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700::6812:1613","result":"answers","port":443},{"address":"2606:4700::6812:1713","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"pan.w3.org","ipv6":true},{"host":"puck.w3.org","ipv6":true}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"jamie.ns.cloudflare.com","ipv6":true},{"host":"pranab.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.","hops":[{"url":"https://w3.org/","address":"2606:4700::6812:1713","status":301,"tls":"valid"},{"url":"https://www.w3.org/","address":"2606:4700::6812:1613","status":200,"tls":"valid"}]},"receiptId":"laEBRqQrRw"}