CentOS is one of the most widely used Operating Systems for website hosting servers. It's one of the countless Linux releases in existence, but what distinguishes it from the others is its long-term support, which guarantees that you'll always have a reliable and protected Operating System. Every CentOS version that is released is supported for a decade, that is longer than with almost every other OS in existence. CentOS also has a much larger developer community than other distributions, therefore if you experience any problem or have some questions, you are able to promptly discover the info that you need. CentOS is considered to be one of the best server Operating Systems, since it is very stable and secure, that makes it very reliable even when you host confidential info. Since it is open-source, you are able to modify 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 type.