cPanel is one of the leading hosting Control Panel tools and it is used by millions of users worldwide. Its popularity is due to its ease of use and intuitive interface, that will allow you to access a number of features with just a couple of clicks. You can upload, copy and move files, create new databases and add users with various levels of access, create email addresses, enable spam protection and SPF validation, view account usage stats, and many more. cPanel is used by numerous reseller web hosting providers, due to the fact that it features a reseller-level Control Panel known as WebHost Manager (WHM). The latter is a powerful software tool that will enable you to create hosting packages and to select all their features. You can also create and adjust client website hosting accounts, easy access and change a variety of server-side settings and DNS zone records, install modules and applications, and many more. cPanel and WHM can be used with a number of billing apps.