{"kind":"host","input":"news.constantcontact.com","report":{"host":"news.constantcontact.com","checkedAt":"2026-11-02T10:01:08.818Z","a":{"status":"found","values":["104.17.27.170","104.17.31.170","104.17.30.170","104.17.28.170","104.17.29.170"],"ttl":300,"via":"Cloudflare","cname":["constantcontact.mediaroom.com"]},"aaaa":{"status":"found","values":["2606:4700::6811:1baa","2606:4700::6811:1daa","2606:4700::6811:1caa","2606:4700::6811:1eaa","2606:4700::6811:1faa"],"ttl":300,"via":"Cloudflare","cname":["constantcontact.mediaroom.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":"news.constantcontact.com has 4 IPv6 addresses and answers on every one we tested (1 more not tested).","addresses":[{"address":"2606:4700::6811:1baa","result":"answers","port":443},{"address":"2606:4700::6811:1daa","result":"answers","port":443},{"address":"2606:4700::6811:1caa","result":"answers","port":443},{"address":"2606:4700::6811:1eaa","result":"answers","port":443},{"address":"2606:4700::6811:1faa","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":"4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"dns1.p01.nsone.net","ipv6":true},{"host":"dns2.p01.nsone.net","ipv6":true},{"host":"dns3.p01.nsone.net","ipv6":true},{"host":"dns4.p01.nsone.net","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 200.","hops":[{"url":"https://news.constantcontact.com/","address":"2606:4700::6811:1baa","status":200,"tls":"valid"}]},"receiptId":"6I2QP7Hd6y","reused":true,"measuredAt":"2026-11-02T10:01:08.869Z"}