{"kind":"host","input":"learn.cm.com","report":{"host":"learn.cm.com","checkedAt":"2026-10-31T05:36:01.268Z","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.learn.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":"learn.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.learn.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":"pass","summary":"Loads over IPv6 with a valid certificate after 4 redirects: HTTP 200.","hops":[{"url":"https://learn.cm.com/","address":"2606:4700::6810:efc8","status":301,"tls":"valid"},{"url":"https://www.cm.com/app/university","address":"2606:4700::6810:efc8","status":302,"tls":"valid"},{"url":"https://login.cm.com/?ReturnUrl=https://www.cm.com%2Fapp%2Funiversity","address":"2606:4700::6810:efc8","status":302,"tls":"valid"},{"url":"https://auth.cm.com/connect/authorize?client_id=bff-prod&request_uri=urn%3Aietf%3Aparams%3Aoauth%3Arequest_uri%3A27135050D844EB3F71DB64B103546E198157362D17988074E35A64D2DEBE64A1&x-client-SKU=ID_NET10_0&x-client-ver=8.19.2.0","address":"2606:4700::6810:efc8","status":303,"tls":"valid"},{"url":"https://auth.cm.com/Account/Login?ReturnUrl=%2Fconnect%2Fauthorize%2Fcallback%3Frequest_uri%3Durn%253Aietf%253Aparams%253Aoauth%253Arequest_uri%253A27135050D844EB3F71DB64B103546E198157362D17988074E35A64D2DEBE64A1%26client_id%3Dbff-prod","address":"2606:4700::6810:efc8","status":200,"tls":"valid"}]},"receiptId":"Ocwbh2eTAR"}