CentOS is one of the preferred Operating Systems for website hosting servers. It's one of the many Linux distributions in existence, however what distinguishes it from all of the others is the long-term support, which guarantees that you'll always have a stable and safe Operating System. Each CentOS version that is released is supported for a decade, that is considerably longer than with another OS in existence. CentOS also has a much larger developer community than other distributions, therefore if you experience any problem or have some questions, you can instantly find the information which you need. CentOS is widely known as one of the best server Operating Systems, as it is very stable and protected, which makes it very reliable even when you host confidential information. Considering that it is open-source, you'll be able to modify each and every part of it and customize it according to your needs, not to mention that the overall cost for a CentOS-based server will be lower, because you won't need to pay license fees of any type.