Your domain password is the password you use to log on to your CPanel. This is useful to occasionally do to maximize your site security. You should always change your password if you think someone else has access to your account.
To change your domain password:
Click on the Domain password link in the Domain Menu area.
Enter your current password in the Old password field.
Enter your new password in the New password and Repeat new password fields.
Click on the Submit button. Your password has now been changed.