CentOS is one of the most widely used Operating Systems for website hosting servers. It's one of the numerous Linux distributions available, however what distinguishes it from all the rest is the long-term support, which ensures that you'll always have a stable and safe OS. Each CentOS version that is released is supported for a decade, that's longer than with another OS out there. CentOS also has a much more numerous developer community than other distributions, therefore in the event you encounter any kind of problem or have some questions, you will be able to instantly get the details which you need. CentOS is regarded as among the best server Operating Systems, because it's very stable and secure, which makes it really reliable even if you host confidential information. Due to the fact that it is open-source, you can modify each and every part of it and personalize it according to your requirements, not to mention that the overall cost for a CentOS-based server will be lower, since you will not have to pay license fees of any sort.