{"kind":"host","input":"bootstrapcdn.com","report":{"host":"bootstrapcdn.com","checkedAt":"2026-11-01T06:44:33.648Z","a":{"status":"found","values":["104.18.10.207","104.18.11.207"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700::6812:acf","2606:4700::6812:bcf"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.bootstrapcdn.com","a":{"status":"found","values":["104.18.11.207","104.18.10.207"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700::6812:acf","2606:4700::6812:bcf"],"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":"bootstrapcdn.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700::6812:acf","result":"answers","port":443},{"address":"2606:4700::6812:bcf","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.bootstrapcdn.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700::6812:acf","result":"answers","port":443},{"address":"2606:4700::6812:bcf","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":"brenda.ns.cloudflare.com","ipv6":true},{"host":"keenan.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.","hops":[{"url":"https://bootstrapcdn.com/","address":"2606:4700::6812:acf","status":301,"tls":"valid"},{"url":"https://www.bootstrapcdn.com/","address":"2606:4700::6812:acf","status":200,"tls":"valid"}]},"receiptId":"VTqLJd94yr","reused":true,"measuredAt":"2026-11-01T06:44:33.690Z"}