{"kind":"host","input":"jamanetwork.com","report":{"host":"jamanetwork.com","checkedAt":"2026-10-31T14:07:03.273Z","a":{"status":"found","values":["104.18.13.179","104.18.12.179"],"ttl":591,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700::6812:db3","2606:4700::6812:cb3"],"ttl":524,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.jamanetwork.com","a":{"status":"found","values":["40.76.153.40"],"ttl":492,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2603:1030:20c:9::2e1"],"ttl":600,"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":"jamanetwork.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700::6812:db3","result":"answers","port":443},{"address":"2606:4700::6812:cb3","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.jamanetwork.com has an AAAA record and answers on it.","addresses":[{"address":"2603:1030:20c:9::2e1","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":"mxb-00164a01.gslb.pphosted.com","ipv6":false},{"host":"mxa-00164a01.gslb.pphosted.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":"pdns12.domaincontrol.com","ipv6":true},{"host":"pdns11.domaincontrol.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 403.","hops":[{"url":"https://jamanetwork.com/","address":"2606:4700::6812:db3","status":403,"tls":"valid"}]},"receiptId":"y20KLZ1kYU","reused":true,"measuredAt":"2026-10-31T14:07:03.365Z"}