With a Master account, you have the ability to order custom domains for your sub-accounts. To do so, follow the instructions below.
Step 1 - Log-in to Your Master Account
If you don't use your own log-in portal, log-in at www.uberflip.com.
Step 2 - Select a Sub-Account and Navigate to the Account Page
Under your list of subaccounts, find the account you wish to add the Custom Domain for.
Step 3 - Select Domains and Add a Custom Domain
Under account settings, click Domains from the left menu and add the Custom Domain to (either for Hubs or Flipbooks) by clicking the + Add a Custom Domain button.
Step 4 - Fill In The Required Info and Select Buy Now
If you have your own Log-in Portal, the CNAME destination will be that URL. Otherwise, you can use read.uberflip.com.