{"kind":"host","input":"smtp.transip.nl","report":{"host":"smtp.transip.nl","checkedAt":"2026-11-01T11:24:38.448Z","a":{"status":"found","values":["149.210.149.12","149.210.149.29"],"ttl":3600,"via":"Cloudflare","cname":["relay.transip.nl"]},"aaaa":{"status":"found","values":["2a01:7c8:7c8::12","2a01:7c8:7c8::29"],"ttl":3600,"via":"Cloudflare","cname":["relay.transip.nl"]},"verdict":"dual-stack"},"readiness":{"grade":"F","summary":"Publishes IPv6 but doesn't answer on it — worse than having none.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"broken","detail":"smtp.transip.nl has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4.","addresses":[{"address":"2a01:7c8:7c8::12","result":"no answer"},{"address":"2a01:7c8:7c8::29","result":"no answer"}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record."},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"3 of 3 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns0.transip.net","ipv6":true},{"host":"ns1.transip.nl","ipv6":true},{"host":"ns2.transip.eu","ipv6":true}]}]},"receiptId":"u4fIHU9PaY","reused":true,"measuredAt":"2026-11-01T11:24:44.453Z"}