Step 1. Update hosting name servers on your relevant domain. You can get those entries from your hosting provider.
Step 2. Login to your cPanel.
Step 3. Locate "Addon domain" feature in your cPanel.
Step 4. Enter your domain name as shown in below image and Click "Add Domain" button.
When you enter the domain name, cPanel automatically populates the Subdomain and Document Root text boxes.
NB: To create multiple addon domains with the same username and different extensions (for example, example.com and example.net ), manually enter a unique username in the Subdomain text box.
Do not hesitate to contact our Support Team if you have further questions.