{"kind":"host","input":"linkedin.com","report":{"host":"linkedin.com","checkedAt":"2026-10-30T17:15:27.946Z","a":{"status":"found","values":["130.211.32.14"],"ttl":207,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2600:1901:0:d5ad::"],"ttl":24,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.linkedin.com","a":{"status":"found","values":["104.18.41.41","172.64.146.215"],"ttl":228,"via":"Cloudflare","cname":["www.es.lnkdns.net","www.linkedin.com.cdn.cloudflare.net"]},"aaaa":{"status":"found","values":["2a06:98c1:310b::ac40:92d7","2a06:98c1:3109::6812:2929"],"ttl":9,"via":"Cloudflare","cname":["www.es.lnkdns.net","www.linkedin.com.cdn.cloudflare.net"]},"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":"linkedin.com has an AAAA record and answers on it.","addresses":[{"address":"2600:1901:0:d5ad::","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.linkedin.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2a06:98c1:310b::ac40:92d7","result":"answers","port":443},{"address":"2a06:98c1:3109::6812:2929","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"mail-1.linkedin.com","ipv6":true},{"host":"mail-2.linkedin.com","ipv6":true},{"host":"mail-3.linkedin.com","ipv6":true}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"4 of 8 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"dns1.p09.nsone.net","ipv6":true},{"host":"dns2.p09.nsone.net","ipv6":true},{"host":"dns3.p09.nsone.net","ipv6":true},{"host":"dns4.p09.nsone.net","ipv6":true},{"host":"ns1-42.azure-dns.com","ipv6":false},{"host":"ns2-42.azure-dns.net","ipv6":false},{"host":"ns3-42.azure-dns.org","ipv6":false},{"host":"ns4-42.azure-dns.info","ipv6":false}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 200.","hops":[{"url":"https://linkedin.com/","address":"2600:1901:0:d5ad::","status":200,"tls":"valid"}]},"receiptId":"2J4BfSVOcv"}