HOW TO FORWARD A SUBDOMAIN
Now that you understand what a subdomain is, you may want to forward it to a separate URL, as opposed to pointing to an IP address or pointing to a server name.
Log in to your GoDaddy account.
Next to Domains, click Manage.
For 6 domains or fewer: Select
EDIT A SUBDOMAIN
Now that you understand what a subdomain is, you can use the Zone File Editor in the DNS Manager to edit a non-forwarded subdomain that points to an IP address. If you want to forward a subdomain,
Updating the IP address where a subdomain resolves does not update
MANAGE DNS FOR YOUR DOMAIN NAMES
You can change which service your domain name uses for its website and email by managing its DNS (Domain Name System) settings. You don't need to know many of the details to use this article, but you can find more information in What is DNS?