The root directory of your website holds the content that loads when visitors type your domain name in a browser. For example, you need to put your index file in your website's root directory for visitors to see your site. Website-related applications might also need to know your website's root directory.

For your primary domain name, your website's root directory is /public_html.

For addon domain and subdomain names, follow these steps to find the root directory:

Services -> My Services -> click on the green "Active" button -> Login to cPanel/Control Panel

In the account Dashboard, click cPanel Admin.

In the cPanel Home page, in the Domains section, click either Subdomains or Addon Domains.

In the Modify Addon Domain or Modify a Subdomain section, the root directory appears below Document Root.