{"kind":"host","input":"uol.com.br","report":{"host":"uol.com.br","checkedAt":"2026-10-31T08:56:03.374Z","a":{"status":"found","values":["200.147.35.149"],"ttl":57,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2804:49c:3102:401:ffff:ffff:ffff:36"],"ttl":60,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.uol.com.br","a":{"status":"found","values":["13.226.209.87","13.226.209.86","13.226.209.42","13.226.209.28"],"ttl":50,"via":"Cloudflare","cname":["dftex7xfha8fh.cloudfront.net"]},"aaaa":{"status":"found","values":["2600:9000:201d:c00:1:5a19:8b40:93a1","2600:9000:201d:a00:1:5a19:8b40:93a1","2600:9000:201d:e000:1:5a19:8b40:93a1","2600:9000:201d:b600:1:5a19:8b40:93a1","2600:9000:201d:d200:1:5a19:8b40:93a1","2600:9000:201d:c200:1:5a19:8b40:93a1","2600:9000:201d:6200:1:5a19:8b40:93a1","2600:9000:201d:1800:1:5a19:8b40:93a1"],"ttl":6,"via":"Cloudflare","cname":["dftex7xfha8fh.cloudfront.net"]},"verdict":"dual-stack"}},"readiness":{"grade":"C","summary":"Works over IPv6, with gaps: its mail servers lack IPv6; its nameservers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"uol.com.br has an AAAA record and answers on it.","addresses":[{"address":"2804:49c:3102:401:ffff:ffff:ffff:36","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.uol.com.br has 4 IPv6 addresses and answers on every one we tested (4 more not tested).","addresses":[{"address":"2600:9000:201d:c00:1:5a19:8b40:93a1","result":"answers","port":443},{"address":"2600:9000:201d:a00:1:5a19:8b40:93a1","result":"answers","port":443},{"address":"2600:9000:201d:e000:1:5a19:8b40:93a1","result":"answers","port":443},{"address":"2600:9000:201d:b600:1:5a19:8b40:93a1","result":"answers","port":443},{"address":"2600:9000:201d:d200:1:5a19:8b40:93a1","result":"not tested"},{"address":"2600:9000:201d:c200:1:5a19:8b40:93a1","result":"not tested"},{"address":"2600:9000:201d:6200:1:5a19:8b40:93a1","result":"not tested"},{"address":"2600:9000:201d:1800:1:5a19:8b40:93a1","result":"not tested"}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"mx.uol.com.br","ipv6":false}]},{"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":"borges.uol.com.br","ipv6":false},{"host":"charles.uol.com.br","ipv6":false},{"host":"eliot.uol.com.br","ipv6":false}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.","hops":[{"url":"https://uol.com.br/","address":"2804:49c:3102:401:ffff:ffff:ffff:36","status":301,"tls":"valid"},{"url":"https://www.uol.com.br/","address":"2600:9000:201d:c00:1:5a19:8b40:93a1","status":200,"tls":"valid"}]},"receiptId":"E0w_a3S_LQ"}