{"kind":"host","input":"smokefree.gov","report":{"host":"smokefree.gov","checkedAt":"2026-11-15T17:04:10.694Z","a":{"status":"found","values":["15.197.193.49"],"ttl":30,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2600:9000:a601:3f6a:c82f:8bec:7e1e:f64b"],"ttl":28800,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.smokefree.gov","a":{"status":"found","values":["15.197.193.49"],"ttl":30,"via":"Cloudflare","cname":["smokefree.gov"]},"aaaa":{"status":"found","values":["2600:9000:a601:3f6a:c82f:8bec:7e1e:f64b"],"ttl":28800,"via":"Cloudflare","cname":["smokefree.gov"]},"verdict":"dual-stack"}},"readiness":{"grade":"A","summary":"Website, mail and DNS all work over IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"smokefree.gov has an AAAA record and answers on it.","addresses":[{"address":"2600:9000:a601:3f6a:c82f:8bec:7e1e:f64b","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.smokefree.gov has an AAAA record and answers on it.","addresses":[{"address":"2600:9000:a601:3f6a:c82f:8bec:7e1e:f64b","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":"3 of 3 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns.nih.gov","ipv6":true},{"host":"ns2.nih.gov","ipv6":true},{"host":"ns3.nih.gov","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 200.","hops":[{"url":"https://smokefree.gov/","address":"2600:9000:a601:3f6a:c82f:8bec:7e1e:f64b","status":200,"tls":"valid"}]},"receiptId":"heUy60paYI","reused":true,"measuredAt":"2026-11-15T17:04:10.788Z"}