{"kind":"host","input":"mckinsey.com","report":{"host":"mckinsey.com","checkedAt":"2026-10-31T15:52:24.218Z","a":{"status":"found","values":["157.191.4.253"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.mckinsey.com","a":{"status":"found","values":["104.68.242.87"],"ttl":20,"via":"Cloudflare","cname":["www.mckinsey.com.edgekey.net","e155.a.akamaiedge.net"]},"aaaa":{"status":"absent","via":"Cloudflare","cname":["www.mckinsey.com.edgekey.net","e155.a.akamaiedge.net"]},"verdict":"ipv4-only"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"mckinsey.com has no AAAA record."},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.mckinsey.com has no AAAA record."},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"mxb-00134603.gslb.pphosted.com","ipv6":false},{"host":"mxa-00134603.gslb.pphosted.com","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":"a22-66.akam.net","ipv6":true},{"host":"a12-64.akam.net","ipv6":true},{"host":"a3-67.akam.net","ipv6":true},{"host":"a18-65.akam.net","ipv6":true},{"host":"a9-64.akam.net","ipv6":true},{"host":"a1-89.akam.net","ipv6":true}]}]},"receiptId":"yP8zSwRfoT"}