{"kind":"host","input":"us.posthog.com","report":{"host":"us.posthog.com","checkedAt":"2026-11-01T20:28:28.773Z","a":{"status":"found","values":["3.41.202.154","3.41.202.173","3.41.202.148","3.41.202.145","3.41.202.164","3.41.202.167","3.41.202.159","3.41.202.170"],"ttl":31,"via":"Cloudflare","cname":["posthog-ingress-prod-us-256455477.us-east-1.elb.amazonaws.com"]},"aaaa":{"status":"found","values":["2600:1f18:4c12:9a02:b17b:b9ab:f713:5193","2600:1f18:4c12:9a02:5fdd:d1a0:3186:805b","2600:1f18:4c12:9a01:11a3:54:b774:6d3c","2600:1f18:4c12:9a02:ff9b:2d63:329e:508b","2600:1f18:4c12:9a00:b356:e1f1:725f:bd6a","2600:1f18:4c12:9a00:92f7:cb1:25ef:7c61","2600:1f18:4c12:9a01:351d:3bb2:e7b0:164","2600:1f18:4c12:9a00:5d3f:6e8a:eb2e:aad"],"ttl":29,"via":"Cloudflare","cname":["posthog-ingress-prod-us-256455477.us-east-1.elb.amazonaws.com"]},"verdict":"dual-stack","www":{"host":"www.us.posthog.com","a":{"status":"absent","via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"no-address"}},"readiness":{"grade":"B","summary":"Works over IPv6, with one gap: www doesn't fully work over IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"us.posthog.com has 4 IPv6 addresses and answers on every one we tested (4 more not tested).","addresses":[{"address":"2600:1f18:4c12:9a02:b17b:b9ab:f713:5193","result":"answers","port":443},{"address":"2600:1f18:4c12:9a02:5fdd:d1a0:3186:805b","result":"answers","port":443},{"address":"2600:1f18:4c12:9a01:11a3:54:b774:6d3c","result":"answers","port":443},{"address":"2600:1f18:4c12:9a02:ff9b:2d63:329e:508b","result":"answers","port":443},{"address":"2600:1f18:4c12:9a00:b356:e1f1:725f:bd6a","result":"not tested"},{"address":"2600:1f18:4c12:9a00:92f7:cb1:25ef:7c61","result":"not tested"},{"address":"2600:1f18:4c12:9a01:351d:3bb2:e7b0:164","result":"not tested"},{"address":"2600:1f18:4c12:9a00:5d3f:6e8a:eb2e:aad","result":"not tested"}]},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.us.posthog.com has no AAAA record."},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record."},{"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}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.","hops":[{"url":"https://us.posthog.com/","address":"2600:1f18:4c12:9a02:b17b:b9ab:f713:5193","status":302,"tls":"valid"},{"url":"https://us.posthog.com/login","address":"2600:1f18:4c12:9a02:b17b:b9ab:f713:5193","status":200,"tls":"valid"}]},"receiptId":"UvHvmEM55l","reused":true,"measuredAt":"2026-11-01T20:28:28.838Z"}