A CNAME (Alias) record points to an A (Host) record. You can create multiple CNAME records and point them to an A record. The most common CNAME records are the subdomains www and ftp.
CNAME records make your DNS data easier to manage. If you change the IP address of an A record, all CNAME records pointed to that A record automatically follow the new IP address. The alternative solution, multiple A records, is not as simple as using CNAME records.
How you now access the DNS manager will depend on the view of your account.
If your domain is registered at another company, see the Domains registered at another company section below for instructions.
In Card View, your account will look something like this:
The subdomain can include a period (.) but not as the first or last character. Consecutive periods (...) are not allowed. A subdomain cannot exceed 25 characters.
In List View, your account will look something like this:
You can click Restore Defaults in the CNAME (Alias) section of the Zone File Editor to restore the default CNAME records for your domain name.
The subdomain can include a period (.) but not as the first or last character. Consecutive periods (...) are not allowed. A subdomain cannot exceed 25 characters.