{"kind":"host","input":"cognicloud.dev","report":{"host":"cognicloud.dev","checkedAt":"2026-11-04T03:35:53.179Z","a":{"status":"found","values":["40.116.70.6"],"ttl":3600,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2001:41d0:301:5::29"],"ttl":3600,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.cognicloud.dev","a":{"status":"found","values":["40.116.70.6"],"ttl":3600,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2001:41d0:301:5::29"],"ttl":3600,"via":"Cloudflare","cname":[]},"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":"cognicloud.dev has an AAAA record and answers on it.","addresses":[{"address":"2001:41d0:301:5::29","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.cognicloud.dev has an AAAA record and answers on it.","addresses":[{"address":"2001:41d0:301:5::29","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"mx1.mail.ovh.net","ipv6":false},{"host":"mx2.mail.ovh.net","ipv6":false},{"host":"mx3.mail.ovh.net","ipv6":false}]},{"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":"ns103.ovh.net","ipv6":true},{"host":"dns103.ovh.net","ipv6":true}]}]},"https":{"status":"fail","problem":"certificate","summary":"The certificate served over IPv6 at 2001:41d0:301:5::29 isn't valid for cognicloud.dev: ERR_TLS_CERT_ALTNAME_INVALID.","hops":[{"url":"https://cognicloud.dev/","address":"2001:41d0:301:5::29","tls":"ERR_TLS_CERT_ALTNAME_INVALID"}]},"receiptId":"T7SiEUiDus","reused":true,"measuredAt":"2026-11-04T03:35:53.647Z"}