{"kind":"host","input":"dynatrace.com","report":{"host":"dynatrace.com","checkedAt":"2026-10-31T08:40:28.660Z","a":{"status":"found","values":["18.160.18.75","18.160.18.96","18.160.18.34","18.160.18.36"],"ttl":3600,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2600:9000:250b:5e00:1f:a924:42c0:93a1","2600:9000:250b:1c00:1f:a924:42c0:93a1","2600:9000:250b:f000:1f:a924:42c0:93a1","2600:9000:250b:a600:1f:a924:42c0:93a1","2600:9000:250b:4600:1f:a924:42c0:93a1","2600:9000:250b:c400:1f:a924:42c0:93a1","2600:9000:250b:9800:1f:a924:42c0:93a1","2600:9000:250b:d000:1f:a924:42c0:93a1"],"ttl":58,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.dynatrace.com","a":{"status":"found","values":["3.167.112.68","3.167.112.10","3.167.112.81","3.167.112.125"],"ttl":60,"via":"Cloudflare","cname":["d1kv3v7jah1phh.cloudfront.net"]},"aaaa":{"status":"absent","via":"Cloudflare","cname":["d1kv3v7jah1phh.cloudfront.net"]},"verdict":"ipv4-only"}},"readiness":{"grade":"C","summary":"Works over IPv6, with gaps: www doesn't fully work over IPv6; its mail servers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"dynatrace.com has 4 IPv6 addresses and answers on every one we tested (4 more not tested).","addresses":[{"address":"2600:9000:250b:5e00:1f:a924:42c0:93a1","result":"answers","port":443},{"address":"2600:9000:250b:1c00:1f:a924:42c0:93a1","result":"answers","port":443},{"address":"2600:9000:250b:f000:1f:a924:42c0:93a1","result":"answers","port":443},{"address":"2600:9000:250b:a600:1f:a924:42c0:93a1","result":"answers","port":443},{"address":"2600:9000:250b:4600:1f:a924:42c0:93a1","result":"not tested"},{"address":"2600:9000:250b:c400:1f:a924:42c0:93a1","result":"not tested"},{"address":"2600:9000:250b:9800:1f:a924:42c0:93a1","result":"not tested"},{"address":"2600:9000:250b:d000:1f:a924:42c0:93a1","result":"not tested"}]},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.dynatrace.com has no AAAA record."},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"us-smtp-inbound-1.mimecast.com","ipv6":false},{"host":"us-smtp-inbound-2.mimecast.com","ipv6":false}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"10 of 10 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"dns1.p06.nsone.net","ipv6":true},{"host":"dns2.p06.nsone.net","ipv6":true},{"host":"dns3.p06.nsone.net","ipv6":true},{"host":"dns4.p06.nsone.net","ipv6":true},{"host":"a8-64.akam.net","ipv6":true},{"host":"a1-229.akam.net","ipv6":true},{"host":"a20-65.akam.net","ipv6":true},{"host":"a28-66.akam.net","ipv6":true},{"host":"a13-64.akam.net","ipv6":true},{"host":"a7-67.akam.net","ipv6":true}]}]},"https":{"status":"fail","problem":"redirect-no-ipv6","summary":"Redirects to www.dynatrace.com, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.","hops":[{"url":"https://dynatrace.com/","address":"2600:9000:250b:5e00:1f:a924:42c0:93a1","status":301,"tls":"valid"},{"url":"https://www.dynatrace.com/","note":"redirects to www.dynatrace.com, which has no IPv6 address"}]},"receiptId":"4_4oMEgYvs"}