{"kind":"host","input":"visa.cn","report":{"host":"visa.cn","checkedAt":"2026-11-02T04:46:39.493Z","a":{"status":"found","values":["27.128.219.121"],"ttl":60,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2408:874f:8000:20:3d34:5f8d:7e6:fffe"],"ttl":60,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.visa.cn","a":{"status":"found","values":["60.217.234.148"],"ttl":18,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2408:8756:4cff:d002:3cde:b6ec:5539:fffe"],"ttl":60,"via":"Cloudflare","cname":[]},"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":"visa.cn 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":"2408:874f:8000:20:3d34:5f8d:7e6:fffe","result":"no answer"}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.visa.cn has an AAAA record and answers on it.","addresses":[{"address":"2408:8756:4cff:d002:3cde:b6ec:5539:fffe","result":"answers","port":443}]},{"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":"ns210.dns.cf-ns.com","ipv6":true},{"host":"ns88.dns.cf-ns.net","ipv6":true}]}]},"receiptId":"MSdhDabosL","reused":true,"measuredAt":"2026-11-02T04:46:45.496Z"}