{"kind":"host","input":"vercel.app","report":{"host":"vercel.app","checkedAt":"2026-10-31T09:36:24.518Z","a":{"status":"found","values":["64.29.17.131","216.198.79.131"],"ttl":299,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.vercel.app","a":{"status":"found","values":["216.198.79.67","64.29.17.67"],"ttl":209,"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":"vercel.app has no AAAA record."},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.vercel.app has no AAAA record."},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"No MX records, so mail goes to the domain's own address (implicit MX). It has no AAAA record."},{"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":"ns1.vercel-dns-3.com","ipv6":true},{"host":"ns2.vercel-dns-3.com","ipv6":true},{"host":"ns3.vercel-dns-3.com","ipv6":true},{"host":"ns4.vercel-dns-3.com","ipv6":true}]}]},"receiptId":"lxppOhu_ar"}