{"kind":"host","input":"api.constantcontact.com","report":{"host":"api.constantcontact.com","checkedAt":"2026-11-02T10:35:02.631Z","a":{"status":"found","values":["3.162.103.61","3.162.103.31","3.162.103.20","3.162.103.102"],"ttl":60,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only"},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"api.constantcontact.com has no AAAA record."},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"No MX records, so mail goes to the domain's own address (implicit MX). It has no AAAA record."},{"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-1312.awsdns-36.org","ipv6":true},{"host":"ns-1742.awsdns-25.co.uk","ipv6":true},{"host":"ns-893.awsdns-47.net","ipv6":true},{"host":"ns-92.awsdns-11.com","ipv6":true}]}]},"receiptId":"LJUoj5uyih","reused":true,"measuredAt":"2026-11-02T10:35:02.652Z"}