{"kind":"host","input":"ifortuna.cz","report":{"host":"ifortuna.cz","checkedAt":"2026-11-13T19:34:53.315Z","a":{"status":"found","values":["104.18.41.6","172.64.146.250"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2a06:98c1:3101::6812:2906","2a06:98c1:3105::ac40:92fa"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.ifortuna.cz","a":{"status":"found","values":["104.18.41.6","172.64.146.250"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2a06:98c1:3105::ac40:92fa","2a06:98c1:3101::6812:2906"],"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":"ifortuna.cz has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2a06:98c1:3101::6812:2906","result":"answers","port":443},{"address":"2a06:98c1:3105::ac40:92fa","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.ifortuna.cz has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2a06:98c1:3105::ac40:92fa","result":"answers","port":443},{"address":"2a06:98c1:3101::6812:2906","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"partial","detail":"At least one mail server has no AAAA record (1 of 2 checked do).","hosts":[{"host":"ifortuna-cz.mail.protection.outlook.com","ipv6":true},{"host":"mx.email-messaging.com","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":"kipp.ns.cloudflare.com","ipv6":true},{"host":"zara.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.","hops":[{"url":"https://ifortuna.cz/","address":"2a06:98c1:3101::6812:2906","status":301,"tls":"valid"},{"url":"https://www.ifortuna.cz/","address":"2a06:98c1:3105::ac40:92fa","status":200,"tls":"valid"}]},"receiptId":"y4lKmfTkmw","reused":true,"measuredAt":"2026-11-13T19:34:53.986Z"}