{"kind":"host","input":"vt.edu","report":{"host":"vt.edu","checkedAt":"2026-11-02T17:08:34.267Z","a":{"status":"found","values":["198.82.215.14"],"ttl":600,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2607:b400:92:26:0:97:1e7:3947"],"ttl":600,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.vt.edu","a":{"status":"found","values":["3.170.42.32","3.170.42.118","3.170.42.19","3.170.42.122"],"ttl":60,"via":"Cloudflare","cname":["d1xq31fbr4womu.cloudfront.net"]},"aaaa":{"status":"found","values":["2600:9000:2870:1200:11:6561:2d80:93a1","2600:9000:2870:a400:11:6561:2d80:93a1","2600:9000:2870:1e00:11:6561:2d80:93a1","2600:9000:2870:e400:11:6561:2d80:93a1","2600:9000:2870:6a00:11:6561:2d80:93a1","2600:9000:2870:9a00:11:6561:2d80:93a1","2600:9000:2870:8c00:11:6561:2d80:93a1","2600:9000:2870:8400:11:6561:2d80:93a1"],"ttl":60,"via":"Cloudflare","cname":["d1xq31fbr4womu.cloudfront.net"]},"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":"vt.edu has an AAAA record and answers on it.","addresses":[{"address":"2607:b400:92:26:0:97:1e7:3947","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.vt.edu has 4 IPv6 addresses and answers on every one we tested (4 more not tested).","addresses":[{"address":"2600:9000:2870:1200:11:6561:2d80:93a1","result":"answers","port":443},{"address":"2600:9000:2870:a400:11:6561:2d80:93a1","result":"answers","port":443},{"address":"2600:9000:2870:1e00:11:6561:2d80:93a1","result":"answers","port":443},{"address":"2600:9000:2870:e400:11:6561:2d80:93a1","result":"answers","port":443},{"address":"2600:9000:2870:6a00:11:6561:2d80:93a1","result":"not tested"},{"address":"2600:9000:2870:9a00:11:6561:2d80:93a1","result":"not tested"},{"address":"2600:9000:2870:8c00:11:6561:2d80:93a1","result":"not tested"},{"address":"2600:9000:2870:8400:11:6561:2d80:93a1","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":"aspmx.l.google.com","ipv6":true},{"host":"alt4.aspmx.l.google.com","ipv6":true},{"host":"alt1.aspmx.l.google.com","ipv6":true},{"host":"alt3.aspmx.l.google.com","ipv6":true}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"auth1.dns.cogentco.com","ipv6":true},{"host":"clature.cns.vt.edu","ipv6":true},{"host":"nomen.cns.vt.edu","ipv6":true},{"host":"auth2.dns.cogentco.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.","hops":[{"url":"https://vt.edu/","address":"2607:b400:92:26:0:97:1e7:3947","status":301,"tls":"valid"},{"url":"https://www.vt.edu/","address":"2600:9000:2870:1200:11:6561:2d80:93a1","status":200,"tls":"valid"}]},"receiptId":"qi8_uScOkV","reused":true,"measuredAt":"2026-11-02T17:08:34.354Z"}