{"kind":"host","input":"acrobits.cz","report":{"host":"acrobits.cz","checkedAt":"2026-11-04T18:37:26.318Z","a":{"status":"found","values":["198.199.66.56"],"ttl":600,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2604:a880:400:d0::8ea:9001"],"ttl":600,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.acrobits.cz","a":{"status":"found","values":["198.199.66.56"],"ttl":600,"via":"Cloudflare","cname":["acrobits.cz"]},"aaaa":{"status":"found","values":["2604:a880:400:d0::8ea:9001"],"ttl":600,"via":"Cloudflare","cname":["acrobits.cz"]},"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":"acrobits.cz has an AAAA record and answers on it.","addresses":[{"address":"2604:a880:400:d0::8ea:9001","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.acrobits.cz has an AAAA record and answers on it.","addresses":[{"address":"2604:a880:400:d0::8ea:9001","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"aspmx.l.google.com","ipv6":true},{"host":"alt1.aspmx.l.google.com","ipv6":true},{"host":"alt2.aspmx.l.google.com","ipv6":true},{"host":"aspmx2.googlemail.com","ipv6":true},{"host":"aspmx3.googlemail.com","ipv6":true},{"host":"aspmx4.googlemail.com","ipv6":true},{"host":"aspmx5.googlemail.com","ipv6":true}]},{"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":"cash.ns.cloudflare.com","ipv6":true},{"host":"rita.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"fail","problem":"redirect-no-ipv6","summary":"Redirects to acrobits.net, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.","hops":[{"url":"https://acrobits.cz/","address":"2604:a880:400:d0::8ea:9001","status":301,"tls":"valid"},{"url":"https://acrobits.net/","note":"redirects to acrobits.net, which has no IPv6 address"}]},"receiptId":"2aJRzqR1iQ","reused":true,"measuredAt":"2026-11-04T18:37:26.404Z"}