Alias name
The hostname you entered. DNS clients use its CNAME to continue resolving a target.
Free DNS tool
CNAME Checker
Find the alias target published for a hostname.
Understand the lookup
What this checker is really showing
A CNAME makes one DNS name an alias of another. It is often used for service verification, branded links, and provider-managed DKIM selectors. This checker shows the target published for the exact hostname you enter.
Illustrative DNS record
track.example.com CNAME tracking.example.netA useful way to check
- 1Enter the full alias hostname, such as track.example.com, rather than only the parent domain.
- 2Read the target to see where the alias points.
- 3Confirm the target is the one your provider asked you to publish.
Read the result
Details worth noticing
Target
The canonical hostname returned by DNS. It is a name, not proof that the destination service is healthy.
Exact match
A CNAME at www.example.com does not imply one exists at example.com or another subdomain.
Before you change a record
- A CNAME normally cannot coexist with other record types at the same owner name.
- Some DNS providers flatten aliases at the zone apex, so a CNAME query may show nothing there.
- A target can resolve while the application behind it is still unavailable.
Quick answers
Why is there no CNAME for my root domain?
The zone apex usually has other required DNS records. Some providers offer alias or flattening features that return address records instead of a visible CNAME.
Does this checker follow the whole alias chain?
No. It reports the CNAME published for the hostname you entered. Check the target separately if you need to inspect another hop.