Recent Cpanel updates have scraped off the <Addon domains> option under the <Domains group> in the Jupiter theme. The guide below describes how to create an addon domain under the Jupiter theme. If the theme is still paper_lantern; refer to this guide: https://truehost.com/support/knowledge-base/how-to-create-an-addon-domain/

1. Login to your Cpanel, and scroll to the Domains Group, and select Domains option

2. Under the list Domains page, click on <Create A New Domain> button.

3. On <Create a New Domain> page, enter the addon domain that you wish to add in the domain section, Uncheck <Share document root> check box.

You do not need to edit any other field.

4. Click on the submit button to create the addon domain.

Quick checks for success in the above procedure

1. The domain has to be registered. For new domains, allow about an hour before adding it as an add-on.
2. The domain has to have Truehost nameservers or have its A record pointing to the server where it is to be added as an add-on. see below the Truehost nameservers
   • NS1.CLOUDOON.COM
   • NS2.CLOUDOON.NET
   • NS3.CLOUDOON.ORG
3. The domain can only be added as an addon if it does not exist on that Cpanel.
4. Your Cpanel must be able to accomodate the new domain as an addon. Check on the maximum addon allowed.