CentOS is one of the most widely used Operating Systems for website hosting servers. It's one of the many Linux releases in existence, yet what distinguishes it from the rest is its long-term support, which guarantees that you'll always have a stable and protected Operating System. Every CentOS version that is released is supported for 10 years, which is a lot longer than with any other OS out there. CentOS also has a much larger developer community than other distributions, therefore if you experience any problem or have any questions, you'll be able to quickly discover the data that 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 if you host sensitive info. Because it is open-source, you will be able to modify any part of it and personalize it according to your needs, not to mention that the overall cost for a CentOS-based server will be lower, since you won't have to pay license fees of any type.