When you log into Domains with your Trinity credentials, you are taken to an interface that lets you manage multiple aspects of your web space, including applications, files, security settings, access logs, user accounts, and more. This interface, which is widely used by web hosts, is called cPanel.
Because cPanel is designed to manage so many different things, it might look overwhelming. Don’t worry! For most users, only the Applications section at the top is important. Some of the other sections will be covered in Advanced Use of Domains.
For a quick overview of everything in cPanel, check out cPanel Basics.