Whenever an app is executed on a web server, it's loaded into the physical memory. In case you run a resource-demanding script, or if you simply add more scripts on your websites and you get plenty of visitors, you could encounter a scenario where your Virtual Private Server has not enough memory to run all the apps and freezes as a result, which means that your sites shall stop functioning effectively and that the site visitors will start seeing error messages. To avoid this type of a scenario, you may take advantage of the RAM upgrade that we are offering and increase the amount of physical memory you can use without changing the entire plan. That way, you may pay just for the resources you actually need and not for additional disk space or higher CPU speeds which you will not really use, for example. With the upgrade, you can guarantee the flawless performance of your websites, which also means a better experience for your website visitors.