A Control Panel is a web-based user interface using which you can manage numerous aspects of your online presence. For instance, you could create or change site files, create and check e-mail messages, control databases, check visitor statistics etc. Those things are done using buttons and menus within a web browser and the CP could also be called ‘back office’, i.e. the administration area associated with your hosting account. Most of the Control Panels these days will enable you to handle all hosting-related matters, but you will usually need a different system to handle payments or to get a new domain when the company offers domain registrations. With respect to the platform they utilize, you can be able to use the billing account to open a support ticket to ask a question or to troubleshoot and fix a problem also, or you may need to employ a 3rd system.