{"kind":"host","input":"smtp.eonet.ne.jp","report":{"host":"smtp.eonet.ne.jp","checkedAt":"2026-11-15T18:08:41.212Z","a":{"status":"found","values":["202.238.198.30"],"ttl":300,"via":"Cloudflare","cname":["kopt-eonet-smtp.xspmail.jp"]},"aaaa":{"status":"found","values":["2001:240:bb81:94:202:238:198:30"],"ttl":300,"via":"Cloudflare","cname":["kopt-eonet-smtp.xspmail.jp"]},"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.eonet.ne.jp 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":"2001:240:bb81:94:202:238:198:30","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":"2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns1.eonet.ne.jp","ipv6":true},{"host":"ns7.eonet.ne.jp","ipv6":true}]}]},"receiptId":"AovaE1Z2tn","reused":true,"measuredAt":"2026-11-15T18:08:47.216Z"}