Access GoDaddy DNS records page here and click on the second-level domain of your choice. Click on the “Manage DNS” in the lower right-hand corner.
To add a third-level domain, click “Add” in the upper right-hand corner. Select type “CNAME” record, specify the third-level domain name (excluding the SLD portion) as Name, and enter the SLD as Value. For example, to add igor.phototilt.net, enter this:
Click “Add record” and allow up to 48 hours for the new domain record to fully propagate.
You can find the current list of DNS records here.
