{"kind":"host","input":"selectel.ru","report":{"host":"selectel.ru","checkedAt":"2026-10-31T15:28:08.458Z","a":{"status":"found","values":["94.26.255.104"],"ttl":120,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2a00:ab00:2000:2::1"],"ttl":120,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.selectel.ru","a":{"status":"found","values":["94.26.255.104"],"ttl":120,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only"}},"readiness":{"grade":"C","summary":"Works over IPv6, with gaps: www doesn't fully work over IPv6; its mail servers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"selectel.ru has an AAAA record and answers on it.","addresses":[{"address":"2a00:ab00:2000:2::1","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.selectel.ru has no AAAA record."},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"smtp-01.selectel.org","ipv6":false}]},{"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":"d.ns.selectel.ru","ipv6":true},{"host":"c.ns.selectel.ru","ipv6":true},{"host":"b.ns.selectel.ru","ipv6":true},{"host":"a.ns.selectel.ru","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 200.","hops":[{"url":"https://selectel.ru/","address":"2a00:ab00:2000:2::1","status":200,"tls":"valid"}]},"receiptId":"F6zRdpXfWe"}