{"kind":"host","input":"kb.rocket.chat","report":{"host":"kb.rocket.chat","checkedAt":"2026-11-15T15:54:04.303Z","a":{"status":"found","values":["51.81.11.137","51.81.47.120","51.81.11.66"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2604:2dc0:100:1b42::","2604:2dc0:100:2378::","2604:2dc0:100:1b89::"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.kb.rocket.chat","a":{"status":"found","values":["51.81.11.137","51.81.11.66","51.81.47.120"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2604:2dc0:100:1b89::","2604:2dc0:100:1b42::","2604:2dc0:100:2378::"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack"}},"readiness":{"grade":"F","summary":"Publishes IPv6 but doesn't answer on it — worse than having none.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"broken","detail":"kb.rocket.chat has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4.","addresses":[{"address":"2604:2dc0:100:1b42::","result":"no answer"},{"address":"2604:2dc0:100:2378::","result":"no answer"},{"address":"2604:2dc0:100:1b89::","result":"no answer"}]},{"key":"www","label":"www over IPv6","status":"broken","detail":"www.kb.rocket.chat has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4.","addresses":[{"address":"2604:2dc0:100:1b89::","result":"no answer"},{"address":"2604:2dc0:100:1b42::","result":"no answer"},{"address":"2604:2dc0:100:2378::","result":"no answer"}]},{"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":"4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns-1367.awsdns-42.org","ipv6":true},{"host":"ns-1644.awsdns-13.co.uk","ipv6":true},{"host":"ns-510.awsdns-63.com","ipv6":true},{"host":"ns-652.awsdns-17.net","ipv6":true}]}]},"receiptId":"DOfM-N29XW","reused":true,"measuredAt":"2026-11-15T15:54:10.305Z"}