DNS-04 / DNS RECORDS
CNAME Lookup
Check the canonical name (alias) record for a subdomain.
About the CNAME Lookup
A CNAME record points one hostname at another, letting a subdomain inherit the target's address. They're widely used for CDNs, verification, and third-party services. This tool resolves the CNAME chain for any hostname.
What this tool checks
It looks up the CNAME record for a hostname and shows the canonical name it points to. If the hostname has no CNAME, it may be using direct A/AAAA records instead.
Common uses
CNAMEs are how you point www at your root domain, connect a subdomain to a service like a CDN or help desk, or satisfy domain-verification requirements from SaaS providers.
Frequently asked questions
What is a CNAME record used for?
A CNAME aliases one hostname to another so it resolves to the same address. It's commonly used to point subdomains at CDNs, SaaS platforms, or your root domain.
Can the root domain have a CNAME?
Not in standard DNS — the root (apex) can't have a CNAME because it conflicts with required records like SOA and NS. Providers offer workarounds such as ALIAS or ANAME records for apex domains.
Why isn't my CNAME resolving?
Common causes are a typo in the target, the target itself not resolving, or a conflicting record at the same name. Check that the target hostname resolves on its own first.