Check CNAME DNS alias records for subdomains and verify canonical host targets with one fast lookup. Designed specifically for developers and professionals, this free online networking runs entirely in your browser to process tasks quickly and securely. Enjoy unlimited usage with no data tracking, no registration required, and an entirely ad-free experience.
What CNAME does
CNAME creates an alias from one hostname to another canonical hostname instead of mapping directly to an IP.
Common use cases
It is widely used for `www` hostnames, CDN edges, and managed service endpoints.
Troubleshooting tips
Check alias and target chains when SSL, CDN, or subdomain routing behaves unexpectedly.
Resolver source
Results come from Google Public DNS-over-HTTPS in one query and are returned as JSON.
Check DNS CNAME alias records for any domain to verify canonical targets, CDN mappings, and DNS routing setup.
Only the domain you enter is sent to Google Public DNS for one CNAME query. No private files, credentials, or account data are uploaded.
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