{"kind":"host","input":"issuu.com","report":{"host":"issuu.com","checkedAt":"2026-10-31T03:44:49.429Z","a":{"status":"found","values":["151.101.65.55","151.101.129.55","151.101.193.55","151.101.1.55"],"ttl":2214,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.issuu.com","a":{"status":"found","values":["151.101.1.55","151.101.65.55","151.101.129.55","151.101.193.55"],"ttl":60,"via":"Cloudflare","cname":["dualstack.m.sni.global.fastly.net"]},"aaaa":{"status":"found","values":["2a04:4e42::311","2a04:4e42:200::311","2a04:4e42:400::311","2a04:4e42:600::311"],"ttl":60,"via":"Cloudflare","cname":["dualstack.m.sni.global.fastly.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":"issuu.com has no AAAA record."},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.issuu.com has 4 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2a04:4e42::311","result":"answers","port":443},{"address":"2a04:4e42:200::311","result":"answers","port":443},{"address":"2a04:4e42:400::311","result":"answers","port":443},{"address":"2a04:4e42:600::311","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"aspmx.l.google.com","ipv6":true},{"host":"alt1.aspmx.l.google.com","ipv6":true},{"host":"alt2.aspmx.l.google.com","ipv6":true},{"host":"aspmx2.googlemail.com","ipv6":true},{"host":"aspmx3.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":"ns-426.awsdns-53.com","ipv6":true},{"host":"ns-757.awsdns-30.net","ipv6":true},{"host":"ns-1343.awsdns-39.org","ipv6":true},{"host":"ns-1582.awsdns-05.co.uk","ipv6":true}]}]},"receiptId":"opRCfIfncM"}