{"kind":"host","input":"mobile.ringcentral.com","report":{"host":"mobile.ringcentral.com","checkedAt":"2026-11-02T13:24:06.499Z","a":{"status":"found","values":["104.18.34.188","172.64.153.68"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2a06:98c1:3104::6812:22bc","2a06:98c1:3100::ac40:9944"],"ttl":300,"via":"Cloudflare","cname":[]},"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":"mobile.ringcentral.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2a06:98c1:3104::6812:22bc","result":"answers","port":443},{"address":"2a06:98c1:3100::ac40:9944","result":"answers","port":443}]},{"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 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"alfred.ns.cloudflare.com","ipv6":true},{"host":"deb.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"fail","problem":"redirect-no-ipv6","summary":"Redirects to www.ringcentral.com, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.","hops":[{"url":"https://mobile.ringcentral.com/","address":"2a06:98c1:3104::6812:22bc","status":301,"tls":"valid"},{"url":"https://www.ringcentral.com/office/features/rcmobile/app_iphone.html","note":"redirects to www.ringcentral.com, which has no IPv6 address"}]},"receiptId":"mTPKc-U1qB","reused":true,"measuredAt":"2026-11-02T13:24:06.545Z"}