{"kind":"host","input":"citilabrc.online","report":{"host":"citilabrc.online","checkedAt":"2026-10-31T21:15:42.558Z","a":{"status":"found","values":["209.42.198.234"],"ttl":14400,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2a07:ab00:0:19::136"],"ttl":14400,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.citilabrc.online","a":{"status":"found","values":["209.42.198.234"],"ttl":14400,"via":"Cloudflare","cname":["citilabrc.online"]},"aaaa":{"status":"found","values":["2a07:ab00:0:19::136"],"ttl":14400,"via":"Cloudflare","cname":["citilabrc.online"]},"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":"citilabrc.online has an AAAA record and answers on it.","addresses":[{"address":"2a07:ab00:0:19::136","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.citilabrc.online has an AAAA record and answers on it.","addresses":[{"address":"2a07:ab00:0:19::136","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"citilabrc.online","ipv6":true}]},{"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":"sd02a-ams.privatesystems.net","ipv6":false},{"host":"sd02b-ams.privatesystems.net","ipv6":false}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.","hops":[{"url":"https://citilabrc.online/","address":"2a07:ab00:0:19::136","status":302,"tls":"valid"},{"url":"https://citilabrc.online/login","address":"2a07:ab00:0:19::136","status":200,"tls":"valid"}]},"receiptId":"4QNsxJ7a4-"}