{"kind":"host","input":"nuubank.guru","report":{"host":"nuubank.guru","checkedAt":"2026-11-01T06:08:25.073Z","a":{"status":"found","values":["172.67.146.218","104.21.79.181"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:3037::6815:4fb5","2606:4700:3034::ac43:92da"],"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":"nuubank.guru has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:3037::6815:4fb5","result":"answers","port":443},{"address":"2606:4700:3034::ac43:92da","result":"answers","port":443}]},{"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":"ernest.ns.cloudflare.com","ipv6":true},{"host":"kara.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 404.","hops":[{"url":"https://nuubank.guru/","address":"2606:4700:3037::6815:4fb5","status":404,"tls":"valid"}]},"receiptId":"40TosdfEHA","reused":true,"measuredAt":"2026-11-01T06:08:25.134Z"}