{"kind":"host","input":"zendesk.com","report":{"host":"zendesk.com","checkedAt":"2026-10-31T06:47:53.964Z","a":{"status":"found","values":["216.198.54.2","216.198.53.2"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.zendesk.com","a":{"status":"found","values":["172.64.153.205","104.18.34.51"],"ttl":272,"via":"Cloudflare","cname":["www.zendesk.com.cdn.cloudflare.net"]},"aaaa":{"status":"found","values":["2606:4700:4406::6812:2233","2a06:98c1:3108::ac40:99cd"],"ttl":9,"via":"Cloudflare","cname":["www.zendesk.com.cdn.cloudflare.net"]},"verdict":"dual-stack"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"zendesk.com has no AAAA record."},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.zendesk.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:4406::6812:2233","result":"answers","port":443},{"address":"2a06:98c1:3108::ac40:99cd","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"partial","detail":"At least one mail server has no AAAA record (4 of 6 checked do).","hosts":[{"host":"us-smtp-inbound-1.mimecast.com","ipv6":false},{"host":"us-smtp-inbound-2.mimecast.com","ipv6":false},{"host":"aspmx.l.google.com","ipv6":true},{"host":"alt1.aspmx.l.google.com","ipv6":true},{"host":"alt2.aspmx.l.google.com","ipv6":true},{"host":"aspmx2.googlemail.com","ipv6":true}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns-1213.awsdns-23.org","ipv6":true},{"host":"ns-1858.awsdns-40.co.uk","ipv6":true},{"host":"ns-444.awsdns-55.com","ipv6":true},{"host":"ns-754.awsdns-30.net","ipv6":true}]}]},"receiptId":"FTAA805Z2j"}