Whenever an app is executed on a web server, it is 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 loads of visitors, you might encounter a situation where your Virtual Private Server has too little memory to run all the programs and freezes because of this, which means that your websites will stop operating correctly and that the visitors shall start seeing error messages. To avoid such a scenario, you can take advantage of the RAM upgrade that we are offering and increase the amount of physical memory available without changing the whole plan. This way, you could pay just for the system resources that you actually need rather than for additional disk space or higher Processor speeds which you shall not really use, for example. With the upgrade, you can ensure the flawless performance of your sites, which also means a better experience for your website visitors.