{"kind":"host","input":"icloud.com","report":{"host":"icloud.com","checkedAt":"2026-10-30T17:13:36.795Z","a":{"status":"found","values":["17.253.144.10"],"ttl":315,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2620:149:af0::10"],"ttl":187,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.icloud.com","a":{"status":"found","values":["23.207.202.142","23.207.202.137"],"ttl":6,"via":"Cloudflare","cname":["www-cdn.icloud.com.akadns.net","www-icloud-row.v.aaplimg.com","www.icloud.com.edgesuite.net","a1317.dscb.akamai.net"]},"aaaa":{"status":"found","values":["2600:1408:5400:34::1703:4b54","2600:1408:5400:34::1703:4b53"],"ttl":10,"via":"Cloudflare","cname":["www-cdn.icloud.com.akadns.net","www-icloud-row.v.aaplimg.com","www.icloud.com.edgesuite.net","a1317.dscb.akamai.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":"icloud.com has an AAAA record and answers on it.","addresses":[{"address":"2620:149:af0::10","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.icloud.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2600:1408:5400:34::1703:4b54","result":"answers","port":443},{"address":"2600:1408:5400:34::1703:4b53","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"mx01.mail.icloud.com","ipv6":false},{"host":"mx02.mail.icloud.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":"a.ns.apple.com","ipv6":true},{"host":"b.ns.apple.com","ipv6":true},{"host":"c.ns.apple.com","ipv6":true},{"host":"d.ns.apple.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.","hops":[{"url":"https://icloud.com/","address":"2620:149:af0::10","status":301,"tls":"valid"},{"url":"https://www.icloud.com/","address":"2600:1408:5400:34::1703:4b54","status":200,"tls":"valid"}]},"receiptId":"zwHqXX3ip2"}