{"kind":"host","input":"en.carioca.rio","report":{"host":"en.carioca.rio","checkedAt":"2026-11-15T15:15:44.847Z","a":{"status":"found","values":["64.7.195.16"],"ttl":300,"via":"Cloudflare","cname":["kars.tdn.gtranslate.net"]},"aaaa":{"status":"found","values":["2001:41d0:b01:5900:6::888"],"ttl":300,"via":"Cloudflare","cname":["kars.tdn.gtranslate.net"]},"verdict":"dual-stack"},"readiness":{"grade":"B","summary":"Works over IPv6, with one gap: its nameservers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"en.carioca.rio has an AAAA record and answers on it.","addresses":[{"address":"2001:41d0:b01:5900:6::888","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":"fail","detail":"No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.","hosts":[{"host":"ns0.rio.gov.br","ipv6":false},{"host":"ns1.rio.rj.gov.br","ipv6":false}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 402.","hops":[{"url":"https://en.carioca.rio/","address":"2001:41d0:b01:5900:6::888","status":402,"tls":"valid"}]},"receiptId":"VJIxbHLWnm","reused":true,"measuredAt":"2026-11-15T15:15:46.917Z"}