CNAME Record Lookup Tool

Check CNAME records instantly across multiple global resolvers to validate your DNS aliases.

How to troubleshoot DNS aliases with a CNAME Lookup

If your subdomain (like www or blog) isn't resolving, or you are trying to connect a third-party service like Shopify, HubSpot, or a CDN, verifying your CNAME record is essential. Enter your domain to instantly query its Canonical Name across multiple resolvers.

Interpreting your CNAME results

  • No Record Found at Apex: If you are querying your root domain (e.g., example.com) and expect a CNAME, the lookup will fail. DNS protocol strictly forbids CNAME records on the apex/root domain.
  • Target Validation: A CNAME must always point to another valid hostname, never an IP address. Ensure the target domain provided by your third-party service is spelled correctly.
  • CNAME Chains: If your CNAME points to another CNAME, which points to an A record, this is a chain. While technically allowed, long chains increase resolution time and can cause timeouts. Our tool helps you trace the final destination.

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