CNAME Lookup & Chain Resolver
Follow a hostname's full CNAME chain to its final target and IP address.
Free • no sign-up • runs live in your browser.
What is a CNAME record?
A CNAME (Canonical Name) record makes one hostname an alias of another. When a client looks up the alias, DNS follows the CNAME to the real (canonical) name and resolves that instead. CNAMEs are common for www, CDNs, and SaaS verification.
Why chains matter
A CNAME can point to another CNAME, forming a chain. Each hop is an extra DNS lookup that adds latency, and a single broken link breaks the whole name. This tool walks the entire chain so you can see every hop and the final address.
Frequently asked questions
Not in standard DNS — the apex needs A/AAAA. Some providers offer CNAME-flattening or ALIAS/ANAME records to work around this.
There's no hard limit, but every hop adds latency and fragility. Keep chains as short as possible; 1 hop is ideal.
The chain may point to a name that no longer exists, or a hop may be missing. This tool shows exactly where the chain ends.