{"kind":"host","input":"instructure.com","report":{"host":"instructure.com","checkedAt":"2026-10-31T22:11:19.848Z","a":{"status":"found","values":["151.101.2.132","151.101.66.132"],"ttl":3167,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.instructure.com","a":{"status":"found","values":["151.101.2.132","151.101.66.132","151.101.130.132","151.101.194.132"],"ttl":60,"via":"Cloudflare","cname":["j.sni.global.fastly.net"]},"aaaa":{"status":"absent","via":"Cloudflare","cname":["j.sni.global.fastly.net"]},"verdict":"ipv4-only"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"instructure.com has no AAAA record."},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.instructure.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":"alt1.aspmx.l.google.com","ipv6":true},{"host":"alt2.aspmx.l.google.com","ipv6":true},{"host":"aspmx2.googlemail.com","ipv6":true},{"host":"aspmx3.googlemail.com","ipv6":true}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns-1354.awsdns-41.org","ipv6":true},{"host":"ns-1799.awsdns-32.co.uk","ipv6":true},{"host":"ns-2.awsdns-00.com","ipv6":true},{"host":"ns-996.awsdns-60.net","ipv6":true}]}]},"receiptId":"B7Xo-nxFJ9","reused":true,"measuredAt":"2026-10-31T22:11:19.867Z"}