{"kind":"host","input":"semrush.com","report":{"host":"semrush.com","checkedAt":"2026-11-02T09:07:15.749Z","a":{"status":"found","values":["34.120.45.191"],"ttl":600,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.semrush.com","a":{"status":"found","values":["34.120.45.191"],"ttl":192,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"semrush.com has no AAAA record."},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.semrush.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":"usb-smtp-inbound-1.mimecast.com","ipv6":false},{"host":"usb-smtp-inbound-2.mimecast.com","ipv6":false}]},{"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-cloud-e3.googledomains.com","ipv6":true},{"host":"ns-cloud-e4.googledomains.com","ipv6":true},{"host":"ns-cloud-e1.googledomains.com","ipv6":true},{"host":"ns-cloud-e2.googledomains.com","ipv6":true}]}]},"receiptId":"oXY4nXT8pZ","reused":true,"measuredAt":"2026-11-02T09:07:15.819Z"}