CentOS is one of the most widely used Operating Systems for website hosting servers. It's one of the many Linux distributions out there, yet what differentiates it from all the rest is its long-term support, which guarantees that you'll always have a stable and secure Operating System. Each CentOS version that is released is supported for ten years, which is much longer than with another OS available on the market. CentOS also has a much more numerous developer community than other distributions, so in case you encounter any problem or have some questions, you'll be able to promptly discover the data which you need. CentOS is considered to be among the best server Operating Systems, because it is very stable and secure, which makes it really reliable even if you host private information. Because it is open-source, you can modify every part of it and customize it according to your requirements, not to mention that the total cost for a CentOS-based server will be lower, because you won't have to pay license fees of any type.