To add a domain name to your Webstarts website, you'll need to first click the 'Add Domain' icon or link from within your Webstarts account. This will open up the Domain Name dialog box. Choose the first option titled 'I would like to register a brand new domain name for my website' and enter the domain name you would like to register in the space provided below, and click 'Check Availability'. If the domain name is available to use, then you will receive a Congratulations message stating so. Then, click the 'Continue' button, choose the upgrade option that is best for you and proceed through the checkout process to complete your account upgrade and domain name registration.

Once complete, your new domain name should start working within minutes but may take up to a couple hours.