cPanel is the most widespread Control Panel instrument on the website hosting market. It is feature-rich and it has an easy-to-use interface that will give you full control of your sites. It is simple to handle files, emails and databases, view usage statistics, set up script-driven applications, and so on. The software is preferred by many website hosting companies, since it also has a reseller counterpart named WebHost Manager (WHM). This instrument will give you a web-based graphical interface, via which you'll be able to control many server-side settings, create hosting plans or new client accounts and adjust their features with just a couple of clicks. You can also install different modules and applications, modify DNS records, brand the cPanel accounts that your customers will get, create and remove features from their Control Panels, and many others. cPanel and WHM are supported by nearly all billing applications out there, so this is one of the top platforms if you wish to become a reseller.