{"kind":"host","input":"posthog.com","report":{"host":"posthog.com","checkedAt":"2026-11-01T14:46:21.634Z","a":{"status":"found","values":["216.150.1.1"],"ttl":61,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.posthog.com","a":{"status":"found","values":["216.150.16.1","216.150.1.1"],"ttl":300,"via":"Cloudflare","cname":["8eb78e9daddac53f.vercel-dns-016.com"]},"aaaa":{"status":"absent","via":"Cloudflare","cname":["8eb78e9daddac53f.vercel-dns-016.com"]},"verdict":"ipv4-only"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"posthog.com has no AAAA record."},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.posthog.com has no AAAA record."},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"aspmx.l.google.com","ipv6":true},{"host":"alt1.aspmx.l.google.com","ipv6":true},{"host":"alt2.aspmx.l.google.com","ipv6":true},{"host":"alt3.aspmx.l.google.com","ipv6":true},{"host":"alt4.aspmx.l.google.com","ipv6":true}]},{"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":"rory.ns.cloudflare.com","ipv6":true},{"host":"julissa.ns.cloudflare.com","ipv6":true}]}]},"receiptId":"FpTRO6clwo","reused":true,"measuredAt":"2026-11-01T14:46:21.644Z"}