{"kind":"host","input":"ultrastudio.run","report":{"host":"ultrastudio.run","checkedAt":"2026-11-13T23:09:43.566Z","a":{"status":"found","values":["162.159.143.30","172.66.3.26"],"ttl":3600,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.ultrastudio.run","a":{"status":"found","values":["104.18.22.186","104.18.23.186"],"ttl":300,"via":"Cloudflare","cname":["custom-domains.chatgpt.site"]},"aaaa":{"status":"found","values":["2606:4700::6812:16ba","2606:4700::6812:17ba"],"ttl":300,"via":"Cloudflare","cname":["custom-domains.chatgpt.site"]},"verdict":"dual-stack"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"ultrastudio.run has no AAAA record."},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.ultrastudio.run has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700::6812:16ba","result":"answers","port":443},{"address":"2606:4700::6812:17ba","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"n/a","detail":"Null MX — this domain says it doesn't receive mail."},{"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":"ns01.one.com","ipv6":true},{"host":"ns02.one.com","ipv6":true}]}]},"receiptId":"NHvblo2xty","reused":true,"measuredAt":"2026-11-13T23:09:43.766Z"}