{"kind":"host","input":"recaptcha.net","report":{"host":"recaptcha.net","checkedAt":"2026-10-31T17:02:13.189Z","a":{"status":"found","values":["172.253.122.94"],"ttl":288,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2607:f8b0:4004:c23::5e"],"ttl":248,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.recaptcha.net","a":{"status":"found","values":["172.253.139.94"],"ttl":58,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2607:f8b0:4004:c25::5e"],"ttl":252,"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":"recaptcha.net has an AAAA record and answers on it.","addresses":[{"address":"2607:f8b0:4004:c23::5e","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.recaptcha.net has an AAAA record and answers on it.","addresses":[{"address":"2607:f8b0:4004:c25::5e","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"aspmx4.googlemail.com","ipv6":true},{"host":"aspmx.l.google.com","ipv6":true},{"host":"alt1.aspmx.l.google.com","ipv6":true},{"host":"aspmx2.googlemail.com","ipv6":true},{"host":"aspmx3.googlemail.com","ipv6":true},{"host":"alt2.aspmx.l.google.com","ipv6":true},{"host":"aspmx5.googlemail.com","ipv6":true}]},{"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.google.com","ipv6":true},{"host":"ns2.google.com","ipv6":true},{"host":"ns1.google.com","ipv6":true},{"host":"ns3.google.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 404.","hops":[{"url":"https://recaptcha.net/","address":"2607:f8b0:4004:c23::5e","status":404,"tls":"valid"}]},"receiptId":"CWK2qqqALN"}