www.centos.org - The Community ENTerprise Operating System
CentOS -- Community ENTerprise Operating System is a free rebuild of source packages freely available from a Prominent North American Enterprise Linux vendor.
CentOS is ranked #4,037 in the world according to the three-month Alexa traffic rankings. Compared with all internet users, the site's users are disproportionately male, and they are disproportionately less affluent people under the age of 35 who browse from work and have postgraduate educations. The site has been online for at least eight years. While the site is ranked #6,072 in the US, where we estimate that 13% of its visitors are located, it is also popular in Pakistan, where it is ranked #1,363, and Centos.org is particularly popular among users in the cities of Hanoi (where it is ranked #834) and Karachi (#843).