{"kind":"host","input":"autodiscover.upenn.edu","report":{"host":"autodiscover.upenn.edu","checkedAt":"2026-11-04T04:07:45.815Z","a":{"status":"found","values":["40.104.46.88","52.96.189.40","40.104.46.56","52.96.181.248"],"ttl":10,"via":"Cloudflare","cname":["autodiscover.outlook.com","autodiscover.outlook.cloud.microsoft","acdcatm.autodiscover.mira.tm.svc.cloud.microsoft","autod.ms-acdc-autod.office.com"]},"aaaa":{"status":"found","values":["2603:1036:303:4::8","2603:1036:303:3c30::8","2603:1036:302:4835::8","2603:1036:303:3c04::8"],"ttl":10,"via":"Cloudflare","cname":["autodiscover.outlook.com","autodiscover.outlook.cloud.microsoft","acdcatm.autodiscover.mira.tm.svc.cloud.microsoft","autod.ms-acdc-autod.office.com"]},"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":"autodiscover.upenn.edu has 4 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2603:1036:303:4::8","result":"answers","port":80},{"address":"2603:1036:303:3c30::8","result":"answers","port":80},{"address":"2603:1036:302:4835::8","result":"answers","port":80},{"address":"2603:1036:303:3c04::8","result":"answers","port":80}]},{"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":"6 of 8 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"dns1.udel.edu","ipv6":false},{"host":"dns2.udel.edu","ipv6":false},{"host":"adns1.nnn.upenn.edu","ipv6":true},{"host":"adns2.nnn.upenn.edu","ipv6":true},{"host":"adns3.nnn.upenn.edu","ipv6":true},{"host":"adns4.upenn.edu","ipv6":true},{"host":"adns5.upenn.edu","ipv6":true},{"host":"adns6.upenn.edu","ipv6":true}]}]},"https":{"status":"unknown","summary":"autodiscover.upenn.edu didn't complete an HTTPS request over IPv6 (ECONNREFUSED).","hops":[{"url":"https://autodiscover.upenn.edu/","address":"2603:1036:303:4::8","note":"ECONNREFUSED"}]},"receiptId":"8dMjqvUKug","reused":true,"measuredAt":"2026-11-04T04:07:45.872Z"}