{"kind":"host","input":"rfc-editor.org","report":{"host":"rfc-editor.org","checkedAt":"2026-10-31T21:49:43.583Z","a":{"status":"found","values":["104.18.20.81","104.18.21.81"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700::6812:1451","2606:4700::6812:1551"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.rfc-editor.org","a":{"status":"found","values":["104.18.21.81","104.18.20.81"],"ttl":175,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700::6812:1451","2606:4700::6812:1551"],"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":"rfc-editor.org has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700::6812:1451","result":"answers","port":443},{"address":"2606:4700::6812:1551","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.rfc-editor.org has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700::6812:1451","result":"answers","port":443},{"address":"2606:4700::6812:1551","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"mx.ietf.org","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":"ken.ns.cloudflare.com","ipv6":true},{"host":"jill.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.","hops":[{"url":"https://rfc-editor.org/","address":"2606:4700::6812:1451","status":301,"tls":"valid"},{"url":"https://www.rfc-editor.org/","address":"2606:4700::6812:1451","status":200,"tls":"valid"}]},"receiptId":"bWoohUn3KA","reused":true,"measuredAt":"2026-10-31T21:49:43.636Z"}