cPanel is one of the leading hosting Control Panel instruments and it's used by millions of users globally. Its popularity is due to its ease of use and intuitive interface, that will allow you to access a number of functions with only a few clicks. You'll be able to upload, copy and move files, set up new databases and add users with different levels of access, create email addresses, enable spam protection and SPF validation, view account usage stats, and a lot more. cPanel is used by numerous reseller web hosting providers, because it contains a reseller-level Control Panel called WebHost Manager (WHM). The latter is a powerful tool which will allow you to create web hosting packages and to select all their features. You may also create and modify client website hosting accounts, access and modify a variety of server-side settings and DNS zone records, install modules and apps, and much more. cPanel and WHM can be used with a lot of billing applications.