{"kind":"host","input":"expedia.com","report":{"host":"expedia.com","checkedAt":"2026-11-01T13:02:03.034Z","a":{"status":"found","values":["23.212.250.7","23.212.250.18"],"ttl":12,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2600:1408:c400:c::17cd:689a","2600:1408:c400:c::17cd:6895"],"ttl":20,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.expedia.com","a":{"status":"found","values":["23.12.147.45","23.12.147.46","23.12.147.4","23.12.147.31"],"ttl":12,"via":"Cloudflare","cname":["wwwexpediacom.dv.edgekey.net","e175445.dscx.akamaiedge.net"]},"aaaa":{"status":"found","values":["2600:1408:c400:c::17cd:688c","2600:1408:c400:c::17cd:6891","2600:1408:c400:c::17cd:688d","2600:1408:c400:c::17cd:688f","2600:1408:c400:c::17cd:6890"],"ttl":1,"via":"Cloudflare","cname":["wwwexpediacom.dv.edgekey.net","e175445.dscx.akamaiedge.net"]},"verdict":"dual-stack"}},"readiness":{"grade":"B","summary":"Works over IPv6, with one gap: its mail servers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"expedia.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2600:1408:c400:c::17cd:689a","result":"answers","port":443},{"address":"2600:1408:c400:c::17cd:6895","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.expedia.com has 4 IPv6 addresses and answers on every one we tested (1 more not tested).","addresses":[{"address":"2600:1408:c400:c::17cd:688c","result":"answers","port":443},{"address":"2600:1408:c400:c::17cd:6891","result":"answers","port":443},{"address":"2600:1408:c400:c::17cd:688d","result":"answers","port":443},{"address":"2600:1408:c400:c::17cd:688f","result":"answers","port":443},{"address":"2600:1408:c400:c::17cd:6890","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":"mxa.expediagroup.com","ipv6":false},{"host":"mxb.expediagroup.com","ipv6":false}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"10 of 10 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"dns1.p09.nsone.net","ipv6":true},{"host":"dns2.p09.nsone.net","ipv6":true},{"host":"dns3.p09.nsone.net","ipv6":true},{"host":"dns4.p09.nsone.net","ipv6":true},{"host":"pdns1.ultradns.net","ipv6":true},{"host":"pdns3.ultradns.org","ipv6":true},{"host":"pdns2.ultradns.net","ipv6":true},{"host":"pdns6.ultradns.co.uk","ipv6":true},{"host":"pdns4.ultradns.org","ipv6":true},{"host":"pdns5.ultradns.info","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 1 redirect: HTTP 429.","hops":[{"url":"https://expedia.com/","address":"2600:1408:c400:c::17cd:689a","status":301,"tls":"valid"},{"url":"https://www.expedia.com/","address":"2600:1408:c400:c::17cd:688c","status":429,"tls":"valid"}]},"receiptId":"Dd6OHByi6b","reused":true,"measuredAt":"2026-11-01T13:02:03.245Z"}