A cloud web hosting service means that each and every part of your world-wide web presence will be handled by a separate server. For instance, your files and databases will be maintained by different machines and since only one type of processes will run on a server, every single machine will perform better and will use its resources to the highest. Whether you'll get a genuine cloud service or not also depends on the control panel that you'll use to handle your account. As most control panels are designed to operate on a single server, they can't work on a cloud platform regardless of what a given Internet hosting service provider could advertise. In case one service stops responding, the entire server could go offline, so your Internet sites will not be accessible. This is the reason why you should check what service you will actually receive if you are looking for cloud web hosting before you purchase anything.