{"kind":"host","input":"shorturl.at","report":{"host":"shorturl.at","checkedAt":"2026-11-05T11:03:42.384Z","a":{"status":"found","values":["172.67.69.88","104.26.9.129","104.26.8.129"],"ttl":11,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:20::681a:981","2606:4700:20::ac43:4558","2606:4700:20::681a:881"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.shorturl.at","a":{"status":"found","values":["104.26.9.129","104.26.8.129","172.67.69.88"],"ttl":20,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:20::681a:881","2606:4700:20::ac43:4558","2606:4700:20::681a:981"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack"}},"readiness":{"grade":"B","summary":"Works over IPv6, with one gap: its mail servers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"shorturl.at has 3 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:20::681a:981","result":"answers","port":443},{"address":"2606:4700:20::ac43:4558","result":"answers","port":443},{"address":"2606:4700:20::681a:881","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.shorturl.at has 3 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:20::681a:881","result":"answers","port":443},{"address":"2606:4700:20::ac43:4558","result":"answers","port":443},{"address":"2606:4700:20::681a:981","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"mail.shorturl.at","ipv6":false}]},{"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":"jason.ns.cloudflare.com","ipv6":true},{"host":"mia.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 403.","hops":[{"url":"https://shorturl.at/","address":"2606:4700:20::681a:981","status":403,"tls":"valid"}]},"receiptId":"gOE2t77bwa","reused":true,"measuredAt":"2026-11-05T11:03:42.420Z"}