{"kind":"host","input":"careers.vanderbilt.edu","report":{"host":"careers.vanderbilt.edu","checkedAt":"2026-11-04T16:42:42.225Z","a":{"status":"found","values":["99.83.227.89","75.2.77.85"],"ttl":163,"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":"careers.vanderbilt.edu has no AAAA record."},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"careers-vanderbilt-edu.mail.protection.outlook.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":"ns1.vanderbilt.edu","ipv6":false},{"host":"ns4.vanderbilt.edu","ipv6":false},{"host":"ns3.vanderbilt.edu","ipv6":false},{"host":"ns2.vanderbilt.edu","ipv6":false}]}]},"receiptId":"8_qW7pQPrl","reused":true,"measuredAt":"2026-11-04T16:42:42.364Z"}