Custom domains
DNS setup
The exact records to add at your registrar.
For a subdomain like waitlist.yourapp.com, add a single CNAME record pointing to cname.qubed.xyz. TTL of 300 seconds is plenty. Don't proxy through Cloudflare during initial setup — it can confuse our verification flow.
For an apex domain like yourapp.com, CNAMEs aren't allowed by DNS spec. Use an A record pointing to 76.76.21.21 instead. If your registrar supports ALIAS or ANAME records (Cloudflare, DNSimple, easyDNS), those work too and are preferred.
We verify with an HTTP-01 challenge for SSL provisioning, so the domain must resolve before we can issue a cert. Once DNS propagates (usually under 5 minutes, sometimes up to an hour), the dashboard's status badge turns green.
If verification stalls, the dashboard shows the exact DNS lookup we're performing. The most common issues are a stale registrar cache, a typo in the CNAME target, or Cloudflare's orange cloud terminating SSL upstream — flip it to grey-cloud (DNS only) to bypass.