{"kind":"host","input":"ieee.org","report":{"host":"ieee.org","checkedAt":"2026-10-31T20:38:06.792Z","a":{"status":"found","values":["140.98.193.152"],"ttl":3521,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.ieee.org","a":{"status":"found","values":["108.138.64.86","108.138.64.52","108.138.64.50","108.138.64.20"],"ttl":56,"via":"Cloudflare","cname":["d1t45owanqx700.cloudfront.net"]},"aaaa":{"status":"found","values":["2600:9000:2508:800:11:4855:ec00:93a1","2600:9000:2508:e200:11:4855:ec00:93a1","2600:9000:2508:5000:11:4855:ec00:93a1","2600:9000:2508:7600:11:4855:ec00:93a1","2600:9000:2508:4600:11:4855:ec00:93a1","2600:9000:2508:2200:11:4855:ec00:93a1","2600:9000:2508:b600:11:4855:ec00:93a1","2600:9000:2508:5e00:11:4855:ec00:93a1"],"ttl":44,"via":"Cloudflare","cname":["d1t45owanqx700.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":"ieee.org has no AAAA record."},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.ieee.org has 4 IPv6 addresses and answers on every one we tested (4 more not tested).","addresses":[{"address":"2600:9000:2508:800:11:4855:ec00:93a1","result":"answers","port":443},{"address":"2600:9000:2508:e200:11:4855:ec00:93a1","result":"answers","port":443},{"address":"2600:9000:2508:5000:11:4855:ec00:93a1","result":"answers","port":443},{"address":"2600:9000:2508:7600:11:4855:ec00:93a1","result":"answers","port":443},{"address":"2600:9000:2508:4600:11:4855:ec00:93a1","result":"not tested"},{"address":"2600:9000:2508:2200:11:4855:ec00:93a1","result":"not tested"},{"address":"2600:9000:2508:b600:11:4855:ec00:93a1","result":"not tested"},{"address":"2600:9000:2508:5e00:11:4855:ec00:93a1","result":"not tested"}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"alt2.aspmx.l.google.com","ipv6":true},{"host":"alt1.aspmx.l.google.com","ipv6":true},{"host":"aspmx.l.google.com","ipv6":true},{"host":"alt4.aspmx.l.google.com","ipv6":true},{"host":"alt3.aspmx.l.google.com","ipv6":true}]},{"key":"dns","label":"Nameservers have IPv6","status":"fail","detail":"No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.","hosts":[{"host":"ns2.ieee.org","ipv6":false},{"host":"ns3.ieee.org","ipv6":false},{"host":"ns1.ieee.org","ipv6":false}]}]},"receiptId":"WVOkkwZkAD"}