{"kind":"host","input":"threadfastai.dev","report":{"host":"threadfastai.dev","checkedAt":"2026-11-08T16:23:11.467Z","a":{"status":"found","values":["104.21.63.218","172.67.172.13"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:3035::6815:3fda","2606:4700:3030::ac43:ac0d"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.threadfastai.dev","a":{"status":"found","values":["104.21.63.218","172.67.172.13"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:3035::6815:3fda","2606:4700:3030::ac43:ac0d"],"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":"threadfastai.dev has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:3035::6815:3fda","result":"answers","port":443},{"address":"2606:4700:3030::ac43:ac0d","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.threadfastai.dev has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:3035::6815:3fda","result":"answers","port":443},{"address":"2606:4700:3030::ac43:ac0d","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":"leif.ns.cloudflare.com","ipv6":true},{"host":"nancy.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.","hops":[{"url":"https://threadfastai.dev/","address":"2606:4700:3035::6815:3fda","status":302,"tls":"valid"},{"url":"https://bold-pine-7a23.cloudflareaccess.com/cdn-cgi/access/login/threadfastai.dev?kid=88f47034843b4fe67fa6ece1bb4c1d4fc71848580b20e2dff53dd9e1c984733d&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6ImY0ZjY0NDcwZjVjOThiM2QzNGY2NWUwMjJiYzdjYTQzOThkZmNlYzZlNTVmOTRmMGMyNWNlMTM0MGViODg1ZTEifQ.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.H7IMd7uND0W2cKFkWbIOO9006l7TQRZAeV_VQBzNUG14AG9r41vC2IXjhnmLKOl3fHfcQzD4IKgkpWTnF_HzP3ETXlYGxHsQ4Gy1__3dPbZWV92xDYG_XdjRZ30vp00bP2Rm8XzDZTwpE4QTFtXXfGGqtNdWA3pljeHvfuL5JwQX3myra2UJoSOtwUfkeVdMKYSTw8CgETDyu9i6g02KeywGdqmLaUxEDoDyXdZiBSQr-hX6F76L1ZPc3h3D4cHqVs9Dp22cBrUg0h72hJwgO38MBu85ab0nkj76DE1coLUWr8adzS05-ufPSqEJnBDjRxya-e-5qMm_HajGmKtc7g&redirect_url=%2F","address":"2606:4700:300a::6813:c31d","status":200,"tls":"valid"}]},"receiptId":"Tk6fQXfwK0","reused":true,"measuredAt":"2026-11-08T16:23:11.935Z"}