http://w3techs.com/technologies/details/os-linux/all/all http://w3techs.com/technologies/details/os-linux/all/all CentOS and RHEL combined total 41.1% of all w

http://w3techs.com/technologies/details/os-linux/all/all http://w3techs.com/technologies/details/os-linux/all/all CentOS and RHEL combined total 41.1% of all websites on the Internet. Ubuntu is a distant 3rd or 4th place behind Debian, depending on whether you count RHEL and CentOS as the same OS, or separate.