{"kind":"host","input":"support.cm.com","report":{"host":"support.cm.com","checkedAt":"2026-10-31T05:35:43.228Z","a":{"status":"found","values":["104.16.239.200","104.17.240.169"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700::6810:efc8","2606:4700::6811:f0a9"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.support.cm.com","a":{"status":"absent","via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"no-address"}},"readiness":{"grade":"B","summary":"Works over IPv6, with one gap: www doesn't fully work over IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"support.cm.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700::6810:efc8","result":"answers","port":443},{"address":"2606:4700::6811:f0a9","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.support.cm.com has no AAAA record."},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record."},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"robin.ns.cloudflare.com","ipv6":true},{"host":"wesley.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"fail","problem":"redirect-no-ipv6","summary":"Redirects to cmcom.atlassian.net, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.","hops":[{"url":"https://support.cm.com/","address":"2606:4700::6810:efc8","status":301,"tls":"valid"},{"url":"https://cmcom.atlassian.net/servicedesk/customer/portal/38","note":"redirects to cmcom.atlassian.net, which has no IPv6 address"}]},"receiptId":"4ABj1DaFZL"}