cPanel is the most widely used Control Panel instrument on the web hosting market. It's feature-rich and it features an easy-to-use interface which will give you full control of your websites. It is simple to take care of files, emails and databases, take a look at usage statistics, set up script-driven applications, and so on. The software is preferred by many web hosting companies, as it also has a reseller counterpart called WebHost Manager (WHM). This tool will provide you with a web-based graphical interface, through which you can handle a number of server-side settings, set up website hosting plans or new client accounts and adjust their features with only a few clicks. You can also set up different modules and apps, change DNS records, brand all of the cPanel accounts that your customers will get, add and remove features from their Control Panels, etcetera. cPanel and WHM are compatible with the vast majority of billing apps out there, so this is one of the best platforms in case you wish to become a reseller.