CentOS is one of the most widely used Operating Systems for web hosting servers. It's one of the numerous Linux releases available, yet what differentiates it from all the others is its long-term support, which ensures that you will always have a reliable and safe Operating System. Every CentOS version that is released is supported for ten years, that's a lot longer than with almost every other OS out there. CentOS also has a much larger developer community than other distributions, so if you experience any problem or have some questions, you're able to rapidly discover the information that you need. CentOS is regarded as one of the best server Operating Systems, since it is very stable and protected, that makes it very reliable even when you host sensitive info. Since it is open-source, you'll be able to modify any 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, since you will not have to pay license fees of any type.