{"kind":"host","input":"sourceforge.net","report":{"host":"sourceforge.net","checkedAt":"2026-10-30T21:26:41.714Z","a":{"status":"found","values":["104.18.13.149","104.18.12.149"],"ttl":65,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700::6812:d95","2606:4700::6812:c95"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.sourceforge.net","a":{"status":"found","values":["104.18.12.149","104.18.13.149"],"ttl":300,"via":"Cloudflare","cname":["www.sourceforge.net.cdn.cloudflare.net"]},"aaaa":{"status":"found","values":["2606:4700::6812:c95","2606:4700::6812:d95"],"ttl":300,"via":"Cloudflare","cname":["www.sourceforge.net.cdn.cloudflare.net"]},"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":"sourceforge.net has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700::6812:d95","result":"answers","port":443},{"address":"2606:4700::6812:c95","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.sourceforge.net has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700::6812:c95","result":"answers","port":443},{"address":"2606:4700::6812:d95","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":"mx.sourceforge.net","ipv6":false}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"6 of 6 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns11.constellix.com","ipv6":true},{"host":"ns21.constellix.com","ipv6":true},{"host":"ns31.constellix.com","ipv6":true},{"host":"ns41.constellix.net","ipv6":true},{"host":"ns51.constellix.net","ipv6":true},{"host":"ns61.constellix.net","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 200.","hops":[{"url":"https://sourceforge.net/","address":"2606:4700::6812:d95","status":200,"tls":"valid"}]},"receiptId":"GSbQ61qWa_"}