{"domain":"sd.gov","result":true,"measuredAt":"2026-11-02T20:42:03.612Z","receiptId":"n_W2PehqZs","answer":{"kind":"host","input":"sd.gov","report":{"host":"sd.gov","checkedAt":"2026-11-02T20:42:03.575Z","a":{"status":"found","values":["150.171.109.73"],"ttl":10,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2603:1061:14:4c::1"],"ttl":10,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.sd.gov","a":{"status":"found","values":["149.96.185.146"],"ttl":60,"via":"Cloudflare","cname":["sdcsm.servicenowservices.com"]},"aaaa":{"status":"absent","via":"Cloudflare","cname":["sdcsm.servicenowservices.com"]},"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":"sd.gov has an AAAA record and answers on it.","addresses":[{"address":"2603:1061:14:4c::1","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.sd.gov 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.sd.gov","ipv6":false},{"host":"smtpb.sd.gov","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":"abdullah.ns.cloudflare.com","ipv6":true},{"host":"anna.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"fail","problem":"redirect-no-ipv6","summary":"Redirects to www.sd.gov, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.","hops":[{"url":"https://sd.gov/","address":"2603:1061:14:4c::1","status":308,"tls":"valid"},{"url":"https://www.sd.gov/","note":"redirects to www.sd.gov, which has no IPv6 address"}]}},"states":[{"firstSeen":"2026-11-02T00:10:31.093Z","lastConfirmed":"2026-11-02T20:42:03.612Z","checks":3,"verdict":"dual-stack","grade":"C","web":"pass","www":"fail","mail":"fail","dns":"pass","secondLook":null}]}