Free CNAME Lookup & Generator
Validate a CNAME or build the record snippet your DNS provider expects — with copy-ready instructions for Cloudflare, GoDaddy, Route 53, and more.
How it works
Pick lookup or generator
Lookup verifies an existing CNAME. Generator builds a record from scratch.
Type your hostname and target
We resolve the CNAME and follow it through to the underlying A record.
Paste at your DNS provider
Provider-specific instructions are included — no guessing where the 'Add record' button hides.
Frequently asked questions
Why can't I CNAME the apex of my domain?+
Per RFC 1034, a CNAME can't coexist with other records — and the apex always has SOA/NS records. Use a subdomain like www, or use ALIAS/ANAME if your DNS provider offers it (Cloudflare, Route 53 do).
What's the right TTL for a CNAME?+
3600 (1 hour) is a sensible default. If you're about to make changes, drop to 300 (5 min) a few hours ahead of time so propagation is fast.
Why does my CNAME resolve but the site doesn't load?+
Two common causes: the target host isn't serving the right Host header for your domain (HTTP routing issue) or the TLS cert hasn't been issued for your domain yet (SSL issue). Use our SSL Certificate Checker to confirm.
Can I have multiple CNAMEs on the same name?+
No — only one CNAME per name. If you need fan-out, use the underlying A records or DNS-level routing.
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