cPanel 

cPanel is an online Linux-based web hosting control panel that provides a graphical interface and automation tools designed to simplify the process of hosting a website to the website owner or the "end user". cPanel utilizes a three-tier structure that provides capabilities for administrators, resellers, and end-user website owners to control the various aspects of website and server administration through a standard web browser. While cPanel is limited to managing a single website, the server administration panel of which cPanel is a part is known as WHM, short for WebHost Manager.