{"kind":"host","input":"sdr.gov","report":{"host":"sdr.gov","checkedAt":"2026-11-15T15:52:06.835Z","a":{"status":"found","values":["137.75.88.7"],"ttl":86400,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.sdr.gov","a":{"status":"found","values":["3.162.103.58","3.162.103.66","3.162.103.75","3.162.103.108"],"ttl":60,"via":"Cloudflare","cname":["d11h9cseqszdqs.cloudfront.net"]},"aaaa":{"status":"found","values":["2600:9000:26c1:a800:3:ff55:1500:93a1","2600:9000:26c1:8400:3:ff55:1500:93a1","2600:9000:26c1:400:3:ff55:1500:93a1","2600:9000:26c1:6000:3:ff55:1500:93a1","2600:9000:26c1:b400:3:ff55:1500:93a1","2600:9000:26c1:8e00:3:ff55:1500:93a1","2600:9000:26c1:de00:3:ff55:1500:93a1","2600:9000:26c1:7e00:3:ff55:1500:93a1"],"ttl":60,"via":"Cloudflare","cname":["d11h9cseqszdqs.cloudfront.net"]},"verdict":"dual-stack"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"sdr.gov has no AAAA record."},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.sdr.gov has 4 IPv6 addresses and answers on every one we tested (4 more not tested).","addresses":[{"address":"2600:9000:26c1:a800:3:ff55:1500:93a1","result":"answers","port":443},{"address":"2600:9000:26c1:8400:3:ff55:1500:93a1","result":"answers","port":443},{"address":"2600:9000:26c1:400:3:ff55:1500:93a1","result":"answers","port":443},{"address":"2600:9000:26c1:6000:3:ff55:1500:93a1","result":"answers","port":443},{"address":"2600:9000:26c1:b400:3:ff55:1500:93a1","result":"not tested"},{"address":"2600:9000:26c1:8e00:3:ff55:1500:93a1","result":"not tested"},{"address":"2600:9000:26c1:de00:3:ff55:1500:93a1","result":"not tested"},{"address":"2600:9000:26c1:7e00:3:ff55:1500:93a1","result":"not tested"}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"No MX records, so mail goes to the domain's own address (implicit MX). It has no 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-01.noaa.gov","ipv6":true},{"host":"ns-02.noaa.gov","ipv6":true},{"host":"ns-03.noaa.gov","ipv6":true}]}]},"receiptId":"IMBfHiAKlI","reused":true,"measuredAt":"2026-11-15T15:52:06.886Z"}