{"kind":"host","input":"yahoo.co.jp","report":{"host":"yahoo.co.jp","checkedAt":"2026-10-31T09:41:20.053Z","a":{"status":"found","values":["124.83.187.252","182.22.23.252","118.151.252.252","118.151.252.124","124.83.187.124","124.83.190.124","124.83.190.252","182.22.23.124"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.yahoo.co.jp","a":{"status":"found","values":["182.22.24.252"],"ttl":60,"via":"Cloudflare","cname":["edge12.g.yimg.jp"]},"aaaa":{"status":"absent","via":"Cloudflare","cname":["edge12.g.yimg.jp"]},"verdict":"ipv4-only"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"yahoo.co.jp has no AAAA record."},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.yahoo.co.jp 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":"mx2.mail.yahoo.co.jp","ipv6":false},{"host":"mx1.mail.yahoo.co.jp","ipv6":false},{"host":"mx5.mail.yahoo.co.jp","ipv6":false},{"host":"mx3.mail.yahoo.co.jp","ipv6":false}]},{"key":"dns","label":"Nameservers have IPv6","status":"fail","detail":"No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.","hosts":[{"host":"ns02.yahoo.co.jp","ipv6":false},{"host":"ns11.yahoo.co.jp","ipv6":false},{"host":"ns12.yahoo.co.jp","ipv6":false},{"host":"ns01.yahoo.co.jp","ipv6":false}]}]},"receiptId":"zjwquqmFr9"}