{"kind":"host","input":"ibm.com","report":{"host":"ibm.com","checkedAt":"2026-10-30T22:13:32.176Z","a":{"status":"found","values":["23.1.60.77"],"ttl":13,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2600:1408:5400:e87::3831","2600:1408:5400:e94::3831"],"ttl":14,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.ibm.com","a":{"status":"found","values":["23.34.125.25"],"ttl":6,"via":"Cloudflare","cname":["outer-global-dual.ibmcom-tls12.edgekey.net","e7817.dscx.akamaiedge.net"]},"aaaa":{"status":"found","values":["2600:1408:c400:1885::1e89","2600:1408:c400:188a::1e89"],"ttl":20,"via":"Cloudflare","cname":["outer-global-dual.ibmcom-tls12.edgekey.net","e7817.dscx.akamaiedge.net"]},"verdict":"dual-stack"}},"readiness":{"grade":"B","summary":"Works over IPv6, with one gap: its mail servers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"ibm.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2600:1408:5400:e87::3831","result":"answers","port":443},{"address":"2600:1408:5400:e94::3831","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.ibm.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2600:1408:c400:1885::1e89","result":"answers","port":443},{"address":"2600:1408:c400:188a::1e89","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"mx0a-001b2d05.pphosted.com","ipv6":false},{"host":"mx0b-001b2d05.pphosted.com","ipv6":false}]},{"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":"dns1.p05.nsone.net","ipv6":true},{"host":"dns2.p05.nsone.net","ipv6":true},{"host":"dns3.p05.nsone.net","ipv6":true},{"host":"dns4.p05.nsone.net","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 2 redirects: HTTP 200.","hops":[{"url":"https://ibm.com/","address":"2600:1408:5400:e87::3831","status":301,"tls":"valid"},{"url":"https://www.ibm.com/","address":"2600:1408:c400:1885::1e89","status":303,"tls":"valid"},{"url":"https://www.ibm.com/us-en","address":"2600:1408:c400:1885::1e89","status":200,"tls":"valid"}]},"receiptId":"tHXFP44Whv"}