{"kind":"host","input":"youtube-nocookie.com","report":{"host":"youtube-nocookie.com","checkedAt":"2026-10-31T06:17:53.743Z","a":{"status":"found","values":["192.178.155.93","192.178.155.91","192.178.155.190","192.178.155.136"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2607:f8b0:4004:c1d::5b","2607:f8b0:4004:c1d::88","2607:f8b0:4004:c1d::5d","2607:f8b0:4004:c1d::be"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.youtube-nocookie.com","a":{"status":"found","values":["172.253.62.91","172.253.62.93","172.253.62.136","192.179.24.136","172.253.115.136","172.253.115.93","172.253.115.91","172.253.115.190","172.253.122.93","172.253.122.136","172.253.122.91","172.253.122.190","142.251.163.91","142.251.163.190","192.179.18.136","172.253.62.190"],"ttl":2,"via":"Cloudflare","cname":["youtube-ui.l.google.com"]},"aaaa":{"status":"found","values":["2607:f8b0:4004:c06::5d","2607:f8b0:4004:c06::5b","2607:f8b0:4004:c2f::5b","2607:f8b0:4004:c06::88"],"ttl":291,"via":"Cloudflare","cname":["youtube-ui.l.google.com"]},"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":"youtube-nocookie.com has 4 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2607:f8b0:4004:c1d::5b","result":"answers","port":443},{"address":"2607:f8b0:4004:c1d::88","result":"answers","port":443},{"address":"2607:f8b0:4004:c1d::5d","result":"answers","port":443},{"address":"2607:f8b0:4004:c1d::be","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.youtube-nocookie.com has 4 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2607:f8b0:4004:c06::5d","result":"answers","port":443},{"address":"2607:f8b0:4004:c06::5b","result":"answers","port":443},{"address":"2607:f8b0:4004:c2f::5b","result":"answers","port":443},{"address":"2607:f8b0:4004:c06::88","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"smtp.google.com","ipv6":true}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns2.google.com","ipv6":true},{"host":"ns1.google.com","ipv6":true},{"host":"ns4.google.com","ipv6":true},{"host":"ns3.google.com","ipv6":true}]}]},"https":{"status":"fail","problem":"certificate","summary":"The certificate served over IPv6 at 2607:f8b0:4004:c1d::5b isn't valid for youtube-nocookie.com: ERR_TLS_CERT_ALTNAME_INVALID.","hops":[{"url":"https://youtube-nocookie.com/","address":"2607:f8b0:4004:c1d::5b","tls":"ERR_TLS_CERT_ALTNAME_INVALID"}]},"receiptId":"-RLHf4pnYd"}