{"kind":"host","input":"noaa.gov","report":{"host":"noaa.gov","checkedAt":"2026-10-31T17:21:08.395Z","a":{"status":"found","values":["137.75.88.7","137.75.88.52"],"ttl":900,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2610:20:8000:8c04::24","2610:20:8800:8c00::24"],"ttl":900,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.noaa.gov","a":{"status":"found","values":["13.35.78.108","13.35.78.97","13.35.78.120","13.35.78.32"],"ttl":60,"via":"Cloudflare","cname":["d1n02fmvrfzeno.cloudfront.net"]},"aaaa":{"status":"found","values":["2600:9000:20ea:b800:5:ff17:fd00:93a1","2600:9000:20ea:3a00:5:ff17:fd00:93a1","2600:9000:20ea:2800:5:ff17:fd00:93a1","2600:9000:20ea:4600:5:ff17:fd00:93a1","2600:9000:20ea:2a00:5:ff17:fd00:93a1","2600:9000:20ea:7400:5:ff17:fd00:93a1","2600:9000:20ea:ac00:5:ff17:fd00:93a1","2600:9000:20ea:400:5:ff17:fd00:93a1"],"ttl":60,"via":"Cloudflare","cname":["d1n02fmvrfzeno.cloudfront.net"]},"verdict":"dual-stack"}},"readiness":{"grade":"F","summary":"Publishes IPv6 but doesn't answer on it — worse than having none.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"broken","detail":"noaa.gov has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4.","addresses":[{"address":"2610:20:8000:8c04::24","result":"no answer"},{"address":"2610:20:8800:8c00::24","result":"no answer"}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.noaa.gov has 4 IPv6 addresses and answers on every one we tested (4 more not tested).","addresses":[{"address":"2600:9000:20ea:b800:5:ff17:fd00:93a1","result":"answers","port":443},{"address":"2600:9000:20ea:3a00:5:ff17:fd00:93a1","result":"answers","port":443},{"address":"2600:9000:20ea:2800:5:ff17:fd00:93a1","result":"answers","port":443},{"address":"2600:9000:20ea:4600:5:ff17:fd00:93a1","result":"answers","port":443},{"address":"2600:9000:20ea:2a00:5:ff17:fd00:93a1","result":"not tested"},{"address":"2600:9000:20ea:7400:5:ff17:fd00:93a1","result":"not tested"},{"address":"2600:9000:20ea:ac00:5:ff17:fd00:93a1","result":"not tested"},{"address":"2600:9000:20ea:400:5:ff17:fd00:93a1","result":"not tested"}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"aspmx.l.google.com","ipv6":true},{"host":"alt1.aspmx.l.google.com","ipv6":true},{"host":"alt2.aspmx.l.google.com","ipv6":true},{"host":"alt3.aspmx.l.google.com","ipv6":true},{"host":"alt4.aspmx.l.google.com","ipv6":true}]},{"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-01.noaa.gov","ipv6":true},{"host":"ns-02.noaa.gov","ipv6":true},{"host":"ns-03.noaa.gov","ipv6":true}]}]},"receiptId":"UhK0vfxB2r"}