{"kind":"host","input":"w3schools.com","report":{"host":"w3schools.com","checkedAt":"2026-10-31T15:06:54.336Z","a":{"status":"found","values":["76.223.115.82","13.248.240.135"],"ttl":42,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.w3schools.com","a":{"status":"found","values":["23.207.202.152","23.207.202.140"],"ttl":20,"via":"Cloudflare","cname":["www.w3schools.com-v1.edgesuite.net","a1400.dscb.akamai.net"]},"aaaa":{"status":"found","values":["2600:1408:5400:34::1703:4b44","2600:1408:5400:34::1703:4b52"],"ttl":20,"via":"Cloudflare","cname":["www.w3schools.com-v1.edgesuite.net","a1400.dscb.akamai.net"]},"verdict":"dual-stack"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"w3schools.com has no AAAA record."},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.w3schools.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2600:1408:5400:34::1703:4b44","result":"answers","port":443},{"address":"2600:1408:5400:34::1703:4b52","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"partial","detail":"At least one mail server has no AAAA record (5 of 6 checked do).","hosts":[{"host":"aspmx.l.google.com","ipv6":true},{"host":"alt3.aspmx.l.google.com","ipv6":true},{"host":"alt4.aspmx.l.google.com","ipv6":true},{"host":"feedback-smtp.eu-west-1.amazonses.com","ipv6":false},{"host":"alt1.aspmx.l.google.com","ipv6":true},{"host":"alt2.aspmx.l.google.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":"ns-1409.awsdns-48.org","ipv6":true},{"host":"ns-1939.awsdns-50.co.uk","ipv6":true},{"host":"ns-314.awsdns-39.com","ipv6":true},{"host":"ns-769.awsdns-32.net","ipv6":true}]}]},"receiptId":"mUrq_0m2gO"}