The following information can be used if you are hosting your website with  GoDaddy . GoDaddy Support       24/7 Support    (480) 505-8877CNAME 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. Note: If your domain is registered at another company, see the Domains registered at another company section below for instructions.Go to the DNS Management page.On the DNS Management page, at the bottom of the Records section, click Add and select CNAME from the menu.Complete the other fields:Host - Enter the subdomain name for the alias assignment. For example, type www. Note: 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. SkySwitch Examples           PBX.mydomain.com    Portal.mydomain.com Access.mydomain.comPoints to- Enter the host name you want the alias to point to. For example, type @ to map the alias directly to your domain name.EXAMPLE:    12345-hpbx.dashmanager.comTTL - Select how long the server should cache the information.   4. Click Save.To add a CNAME record for domains registered at another companyLog in to your My Products page.If you aren't automatically directed there, make sure to select the My Products tab:Click Manage All:From the top menu, click the DNS tab, and select Manage Zones:Enter the domain name you want to use and click Search.On the DNS Management page, at the bottom of the Records section, click Add and select CNAME from the menu.Complete the other fields:Host - Enter the subdomain name for the alias assignment. For example, type www. Note: The subdomain can include a period (.) but not as the first or last character. Consecutive periods (...) are not allowed. A subdomain cannot exceed 25 charactersSkySwitch Examples   PBX.mydomain.com Portal.mydomain.com Access.mydomain.com.Points to - Enter the host name you want the alias to point to. For example, type @ to map the alias directly to your domain name.EXAMPLE:    12345-hpbx.dashmanager.comTTL - Select how long the server should cache the information.Click Save.Screen Shots from GoDaddyMore infoManage DNS zone files