CentOS is one of the preferred Operating Systems for website hosting servers. It's one of the many Linux distributions out there, yet what differentiates it from the rest is the long-term support, which ensures that you will always have a stable and protected OS. Every CentOS version that is released is supported for 10 years, that's considerably longer than with any other OS on the market. CentOS also has a much larger developer community than other distributions, therefore in the event you experience any kind of problem or have some questions, you'll be able to rapidly discover the info which you need. CentOS is widely known as one of the best server Operating Systems, due to the fact that it is very stable and protected, that makes it really reliable even when you host sensitive info. Considering that it is open-source, you can modify every part of it and personalize it according to your requirements, not to mention that the total cost for a CentOS-based server will be lower, as you won't need to pay license fees of any sort.