{"kind":"host","input":"classylabs.net","report":{"host":"classylabs.net","checkedAt":"2026-11-14T12:05:35.005Z","a":{"status":"found","values":["104.21.38.96","172.67.221.126"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:3032::ac43:dd7e","2606:4700:3037::6815:2660"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.classylabs.net","a":{"status":"found","values":["104.21.38.96","172.67.221.126"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:3032::ac43:dd7e","2606:4700:3037::6815:2660"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack"}},"readiness":{"grade":"A","summary":"Website, mail and DNS all work over IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"classylabs.net has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:3032::ac43:dd7e","result":"answers","port":443},{"address":"2606:4700:3037::6815:2660","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.classylabs.net has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:3032::ac43:dd7e","result":"answers","port":443},{"address":"2606:4700:3037::6815:2660","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"route3.mx.cloudflare.net","ipv6":true},{"host":"route1.mx.cloudflare.net","ipv6":true},{"host":"route2.mx.cloudflare.net","ipv6":true}]},{"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":"lilyana.ns.cloudflare.com","ipv6":true},{"host":"mustafa.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"unknown","summary":"Answered over IPv6 with a server error (HTTP 530) — can't tell whether that's specific to IPv6.","hops":[{"url":"https://classylabs.net/","address":"2606:4700:3032::ac43:dd7e","status":530,"tls":"valid"}]},"receiptId":"eIupUgmf-J","reused":true,"measuredAt":"2026-11-14T12:05:35.064Z"}