{"kind":"host","input":"rackspace.com","report":{"host":"rackspace.com","checkedAt":"2026-10-31T15:03:54.241Z","a":{"status":"found","values":["52.1.14.221","3.227.192.229"],"ttl":80563,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.rackspace.com","a":{"status":"found","values":["23.13.171.118"],"ttl":20,"via":"Cloudflare","cname":["www.rackspace.com.edgekey.net","e13746.dscb.akamaiedge.net"]},"aaaa":{"status":"found","values":["2600:1408:c400:f95::35b2","2600:1408:c400:f93::35b2"],"ttl":20,"via":"Cloudflare","cname":["www.rackspace.com.edgekey.net","e13746.dscb.akamaiedge.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":"rackspace.com has no AAAA record."},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.rackspace.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2600:1408:c400:f95::35b2","result":"answers","port":443},{"address":"2600:1408:c400:f93::35b2","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"rackspace-com.mail.protection.outlook.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.rackspace.com","ipv6":false},{"host":"ns.rackspace.com","ipv6":false}]}]},"receiptId":"Ifc8cPsq9N"}