{"kind":"host","input":"booking.com","report":{"host":"booking.com","checkedAt":"2026-10-30T22:04:01.818Z","a":{"status":"found","values":["3.170.42.127","3.170.42.86","3.170.42.87","3.170.42.19"],"ttl":5,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.booking.com","a":{"status":"found","values":["3.170.42.127","3.170.42.19","3.170.42.87","3.170.42.86"],"ttl":14,"via":"Cloudflare","cname":["d1of1hbywxxm65.cloudfront.net"]},"aaaa":{"status":"absent","via":"Cloudflare","cname":["d1of1hbywxxm65.cloudfront.net"]},"verdict":"ipv4-only"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"booking.com has no AAAA record."},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.booking.com has no AAAA record."},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"mxa-0032a201.gslb.pphosted.com","ipv6":false},{"host":"mxb-0032a201.gslb.pphosted.com","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":"ns-1288.awsdns-33.org","ipv6":true},{"host":"ns-1959.awsdns-52.co.uk","ipv6":true},{"host":"ns-508.awsdns-63.com","ipv6":true},{"host":"ns-716.awsdns-25.net","ipv6":true}]}]},"receiptId":"LgE5_Hc2KU"}