CentOS is one of the most widely used Operating Systems for web hosting servers. It's one of the countless Linux releases available, however what distinguishes it from all the rest is its long-term support, which ensures that you will always have a stable and risk-free Operating System. Every CentOS version that is released is supported for 10 years, that is considerably longer than with any other OS available on the market. CentOS also has a much larger developer community than other distributions, therefore in case you experience any kind of problem or have some questions, you are able to promptly discover the info which you need. CentOS is widely known as one of the best server Operating Systems, since it's very stable and secure, that makes it really reliable even when you host confidential data. Considering that it is open-source, you can modify any part of it and customize it according to your needs, not to mention that the overall cost for a CentOS-based server will be lower, as you will not need to pay license fees of any type.