You can redirect your subdomain to another page by following the steps below:

  1. Log into cPanel.
  2. In the Domains section, click the Subdomains icon.
  3. Under Modify a Subdomain, click the Manage Redirection link to the right of the subdomain you wish to redirect.
  4. In the text box, type the URL to which you would like visitors to be redirected if they go to the subdomain (e.g. http://domain.com/optional-stuff).
  5. Click Save.

When you visit the subdomain, you will now be redirected to the specified page.