cPanel is the most popular Control Panel tool on the website hosting market. It's feature-rich and it has an easy-to-use interface which will give you full control of your web sites. It is easy to take care of files, emails and databases, view usage statistics, set up script-driven applications, and the like. This software is preferred by many website hosting companies, because it also has a reseller counterpart called WebHost Manager (WHM). The aforementioned instrument will give you a web-based graphical interface, via which you can manage lots of server-side settings, generate hosting plans or new client accounts and modify their features with just a few clicks. You can also set up different modules and apps, customize DNS records, brand all of the cPanel accounts that your customers will get, create and remove features from their Control Panels, and so on. cPanel and WHM are supported by the vast majority of billing applications out there, so this is one of the top platforms when you would like to become a reseller.