cPanel is one of the leading website hosting Control Panel instruments and it is used by millions of users internationally. Its popularity is as a result of its ease of use and intuitive interface, that will help you access a lot of functions with just a couple of clicks. You can move, copy and upload files, generate new databases and add users with different levels of access, create e-mail addresses, enable spam security and SPF validation, view account usage statistics, and much more. cPanel is used by many reseller hosting providers, because it comes with a reseller-level Control Panel called WebHost Manager (WHM). The latter is a powerful instrument which will help you create web hosting plans and to select all their features. You may also set up and modify client hosting accounts, easy access and change a number of server-side settings and DNS zone records, install modules and apps, and many more. cPanel and WHM can be used with a large number of billing applications.