{"kind":"host","input":"calendar.nyu.edu","report":{"host":"calendar.nyu.edu","checkedAt":"2026-11-03T03:37:45.939Z","a":{"status":"found","values":["18.154.227.85","18.154.227.34","18.154.227.17","18.154.227.118"],"ttl":60,"via":"Cloudflare","cname":["d2668vs6wprm13.cloudfront.net"]},"aaaa":{"status":"found","values":["2600:9000:2501:9e00:16:2450:51c0:93a1","2600:9000:2501:ea00:16:2450:51c0:93a1","2600:9000:2501:2c00:16:2450:51c0:93a1","2600:9000:2501:d400:16:2450:51c0:93a1","2600:9000:2501:9200:16:2450:51c0:93a1","2600:9000:2501:6c00:16:2450:51c0:93a1","2600:9000:2501:5000:16:2450:51c0:93a1","2600:9000:2501:ac00:16:2450:51c0:93a1"],"ttl":60,"via":"Cloudflare","cname":["d2668vs6wprm13.cloudfront.net"]},"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":"calendar.nyu.edu has 4 IPv6 addresses and answers on every one we tested (4 more not tested).","addresses":[{"address":"2600:9000:2501:9e00:16:2450:51c0:93a1","result":"answers","port":443},{"address":"2600:9000:2501:ea00:16:2450:51c0:93a1","result":"answers","port":443},{"address":"2600:9000:2501:2c00:16:2450:51c0:93a1","result":"answers","port":443},{"address":"2600:9000:2501:d400:16:2450:51c0:93a1","result":"answers","port":443},{"address":"2600:9000:2501:9200:16:2450:51c0:93a1","result":"not tested"},{"address":"2600:9000:2501:6c00:16:2450:51c0:93a1","result":"not tested"},{"address":"2600:9000:2501:5000:16:2450:51c0:93a1","result":"not tested"},{"address":"2600:9000:2501:ac00:16:2450:51c0:93a1","result":"not tested"}]},{"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":"2 of 3 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns1.nyu.net","ipv6":true},{"host":"ns4.nyu.edu","ipv6":false},{"host":"ns2.nyu.org","ipv6":true}]}]},"https":{"status":"unknown","summary":"More than 5 redirects — stopped following.","hops":[{"url":"https://calendar.nyu.edu/","address":"2600:9000:2501:9e00:16:2450:51c0:93a1","status":302,"tls":"valid"},{"url":"https://www.google.com/calendar/hosted/nyu.edu","address":"2001:4860:4829:7700::","status":302,"tls":"valid"},{"url":"https://calendar.google.com/calendar/hosted/nyu.edu","address":"2607:f8b0:4004:c1d::8a","status":302,"tls":"valid"},{"url":"https://calendar.google.com/calendar/a/nyu.edu","address":"2607:f8b0:4004:c1d::8a","status":302,"tls":"valid"},{"url":"https://www.google.com/a/nyu.edu/ServiceLogin?service=cl&continue=https://calendar.google.com/calendar/&followup=https://calendar.google.com/calendar/&osid=1&passive=1209600","address":"2001:4860:4829:7700::","status":302,"tls":"valid"},{"url":"https://accounts.google.com/samlredirect?continue=https%3A%2F%2Fcalendar.google.com%2Fcalendar%2F&sso_profile=inboundSamlSsoProfiles%2F03a14e4u3zlpreo","address":"2607:f8b0:4004:c06::54","status":302,"tls":"valid"}]},"receiptId":"5HX2eJSIhS","reused":true,"measuredAt":"2026-11-03T03:37:46.359Z"}