cPanel is one of the leading hosting Control Panel tools and it's used by millions of users internationally. Its popularity is due to its convenience and intuitive interface, which will allow you to access a lot of features with just a couple of clicks. You are able to move, copy and upload files, create new databases and add users with various levels of access, create email addresses, activate spam security and SPF validation, view account usage stats, and many more. cPanel is used by many reseller hosting providers, because it has a reseller-level Control Panel named WebHost Manager (WHM). The latter is a powerful instrument that will enable you to create website hosting plans and to choose all their features. You can also create and modify client web hosting accounts, access and edit numerous server-side settings and DNS zone records, set up modules and apps, and many more. cPanel and WHM can be used with a lot of billing applications.