{"kind":"host","input":"twitter.com","report":{"host":"twitter.com","checkedAt":"2026-10-30T18:02:06.645Z","a":{"status":"found","values":["162.159.140.229"],"ttl":158,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.twitter.com","a":{"status":"found","values":["162.159.140.229"],"ttl":211,"via":"Cloudflare","cname":["twitter.com"]},"aaaa":{"status":"absent","via":"Cloudflare","cname":["twitter.com"]},"verdict":"ipv4-only"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"twitter.com has no AAAA record."},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.twitter.com has no AAAA record."},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"aspmx.l.google.com","ipv6":true},{"host":"alt3.aspmx.l.google.com","ipv6":true},{"host":"alt4.aspmx.l.google.com","ipv6":true},{"host":"alt1.aspmx.l.google.com","ipv6":true},{"host":"alt2.aspmx.l.google.com","ipv6":true}]},{"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":"a.r06.twtrdns.net","ipv6":false},{"host":"a.u06.twtrdns.net","ipv6":false},{"host":"b.r06.twtrdns.net","ipv6":false},{"host":"b.u06.twtrdns.net","ipv6":false},{"host":"c.r06.twtrdns.net","ipv6":false},{"host":"c.u06.twtrdns.net","ipv6":false},{"host":"d.r06.twtrdns.net","ipv6":false},{"host":"d.u06.twtrdns.net","ipv6":false}]}]},"receiptId":"2o3AvyEvjY"}