{"kind":"host","input":"security-rakuten.com","report":{"host":"security-rakuten.com","checkedAt":"2026-11-10T23:40:28.827Z","a":{"status":"found","values":["104.21.50.79","172.67.159.121"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:3035::6815:324f","2606:4700:3034::ac43:9f79"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack"},"readiness":{"grade":"A","summary":"Website, mail and DNS all work over IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"security-rakuten.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:3035::6815:324f","result":"answers","port":443},{"address":"2606:4700:3034::ac43:9f79","result":"answers","port":443}]},{"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":"adel.ns.cloudflare.com","ipv6":true},{"host":"kai.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"fail","problem":"redirect-no-ipv6","summary":"Redirects to www.rakuten.co.jp, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.","hops":[{"url":"https://security-rakuten.com/","address":"2606:4700:3035::6815:324f","status":307,"tls":"valid"},{"url":"https://www.rakuten.co.jp/","note":"redirects to www.rakuten.co.jp, which has no IPv6 address"}]},"receiptId":"s8UNTCKfPz","reused":true,"measuredAt":"2026-11-10T23:40:30.440Z"}