{"kind":"host","input":"cllassroom.site","report":{"host":"cllassroom.site","checkedAt":"2026-11-12T07:40:18.656Z","a":{"status":"found","values":["104.21.4.11","172.67.223.239"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:3034::6815:40b","2606:4700:3033::ac43:dfef"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.cllassroom.site","a":{"status":"found","values":["172.67.223.239","104.21.4.11"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:3033::ac43:dfef","2606:4700:3034::6815:40b"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack"}},"readiness":{"grade":"B","summary":"Works over IPv6, with one gap: its mail servers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"cllassroom.site has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:3034::6815:40b","result":"answers","port":443},{"address":"2606:4700:3033::ac43:dfef","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.cllassroom.site has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:3033::ac43:dfef","result":"answers","port":443},{"address":"2606:4700:3034::6815:40b","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"mx2-hosting.jellyfish.systems","ipv6":false},{"host":"mx3-hosting.jellyfish.systems","ipv6":false},{"host":"mx1-hosting.jellyfish.systems","ipv6":false}]},{"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":"angelina.ns.cloudflare.com","ipv6":true},{"host":"emerson.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 200.","hops":[{"url":"https://cllassroom.site/","address":"2606:4700:3034::6815:40b","status":200,"tls":"valid"}]},"receiptId":"VatrQEWhpn","reused":true,"measuredAt":"2026-11-12T07:40:19.140Z"}