{"kind":"host","input":"mx.usc.edu","report":{"host":"mx.usc.edu","checkedAt":"2026-11-03T03:23:28.361Z","a":{"status":"found","values":["67.231.157.15","67.231.149.15"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.mx.usc.edu","a":{"status":"absent","via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"no-address"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"mx.usc.edu has no AAAA record."},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.mx.usc.edu 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":"2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns0163.secondary.cloudflare.com","ipv6":true},{"host":"ns0037.secondary.cloudflare.com","ipv6":true}]}]},"receiptId":"fVmOzFQ_tv","reused":true,"measuredAt":"2026-11-03T03:23:28.389Z"}