{"kind":"host","input":"cisco.com","report":{"host":"cisco.com","checkedAt":"2026-10-30T22:03:43.811Z","a":{"status":"found","values":["72.163.4.185"],"ttl":626,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2001:420:1101:1::185"],"ttl":313,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.cisco.com","a":{"status":"found","values":["23.220.129.41"],"ttl":14,"via":"Cloudflare","cname":["www.cisco.com.akadns.net","wwwds.cisco.com.edgekey.net","e2867.dsca.akamaiedge.net"]},"aaaa":{"status":"found","values":["2600:1408:c400:38e::b33","2600:1408:c400:38d::b33"],"ttl":13,"via":"Cloudflare","cname":["www.cisco.com.akadns.net","wwwds.cisco.com.edgekey.net","e2867.dsca.akamaiedge.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":"cisco.com has an AAAA record and answers on it.","addresses":[{"address":"2001:420:1101:1::185","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.cisco.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2600:1408:c400:38e::b33","result":"answers","port":443},{"address":"2600:1408:c400:38d::b33","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"aer-mx-01.cisco.com","ipv6":true},{"host":"alln-mx-01.cisco.com","ipv6":true},{"host":"rcdn-mx-01.cisco.com","ipv6":true}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"5 of 5 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns3.cisco.com","ipv6":true},{"host":"a3-64.akam.net","ipv6":true},{"host":"a28-64.akam.net","ipv6":true},{"host":"ns2.cisco.com","ipv6":true},{"host":"ns1.cisco.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.","hops":[{"url":"https://cisco.com/","address":"2001:420:1101:1::185","status":302,"tls":"valid"},{"url":"https://www.cisco.com/","address":"2600:1408:c400:38e::b33","status":200,"tls":"valid"}]},"receiptId":"FpvwEXrVED"}