What is a CNAME record?

What is a CNAME record ?

CNAME stands for Canonical Name. CNAME records can be used to alias one name to another.
For example, if you have a server where you keep all of your documents online, it might normally be accessed through
docs.example.com.
You may also want to access it through
documents.example.com.
One way to make this possible is to add a CNAME record that points
documents.example.com
to
docs.example.com.
When someone visits
documents.example.com
they will see the exact same content as
docs.example.com
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