{"kind":"host","input":"www.gov.cn","report":{"host":"www.gov.cn","checkedAt":"2026-11-02T10:44:39.744Z","a":{"status":"found","values":["156.225.111.237","156.225.111.238","156.225.111.236"],"ttl":55,"via":"Cloudflare","cname":["www.gov.cn.bsgslb.cn","zclfg-pro.v.bsgslb.cn"]},"aaaa":{"status":"found","values":["2407:2440:2d::13","2407:2440:2d::14","2407:2440:2d::b","2407:2440:2d::c","2407:2440:2d::d","2407:2440:2d::e","2407:2440:2d::f","2407:2440:2d::10"],"ttl":60,"via":"Cloudflare","cname":["www.gov.cn.bsgslb.cn","zclfg-pro.v.bsgslb.cn"]},"verdict":"dual-stack"},"readiness":{"grade":"B","summary":"Works over IPv6, with one gap: its mail servers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"www.gov.cn has 4 IPv6 addresses and answers on every one we tested (4 more not tested).","addresses":[{"address":"2407:2440:2d::13","result":"answers","port":443},{"address":"2407:2440:2d::14","result":"answers","port":443},{"address":"2407:2440:2d::b","result":"answers","port":443},{"address":"2407:2440:2d::c","result":"answers","port":443},{"address":"2407:2440:2d::d","result":"not tested"},{"address":"2407:2440:2d::e","result":"not tested"},{"address":"2407:2440:2d::f","result":"not tested"},{"address":"2407:2440:2d::10","result":"not tested"}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"mx.mail.gov.cn","ipv6":false}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"2 of 3 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns1.cdns.cn","ipv6":true},{"host":"ns3.cdns.cn","ipv6":false},{"host":"ns2.cdns.cn","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 200.","hops":[{"url":"https://www.gov.cn/","address":"2407:2440:2d::13","status":200,"tls":"valid"}]},"receiptId":"tDzRqhNChW","reused":true,"measuredAt":"2026-11-02T10:44:42.191Z"}