{"kind":"host","input":"calcsbase.com","report":{"host":"calcsbase.com","checkedAt":"2026-10-31T09:34:00.067Z","a":{"status":"found","values":["172.67.166.206","104.21.49.199"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:3033::ac43:a6ce","2606:4700:3037::6815:31c7"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.calcsbase.com","a":{"status":"found","values":["172.67.166.206","104.21.49.199"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:3033::ac43:a6ce","2606:4700:3037::6815:31c7"],"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":"calcsbase.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:3033::ac43:a6ce","result":"answers","port":443},{"address":"2606:4700:3037::6815:31c7","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.calcsbase.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:3033::ac43:a6ce","result":"answers","port":443},{"address":"2606:4700:3037::6815:31c7","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":"_dc-mx.0e2562d46b3b.calcsbase.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":"april.ns.cloudflare.com","ipv6":true},{"host":"max.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 200.","hops":[{"url":"https://calcsbase.com/","address":"2606:4700:3033::ac43:a6ce","status":200,"tls":"valid"}]},"receiptId":"PGxPX5qrsO","reused":true,"measuredAt":"2026-10-31T09:34:00.169Z"}