Market Share by Top Websites

1 CentOS is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Unix is clearly lagging behind, losing to CentOS in all segments.

Websites Categories

1 CentOS has better usage coverage in more websites categories. Including Science & Education, Computers Electronics & Technology, Law & Government, Health and 20 other categories.

2 Unix hasn't got a lead over CentOS in any websites category.


1 CentOS is leading in most countries, including United States, Japan, Russia, China and 132 other countries.

2 Unix is leading in Germany, South Korea, Netherlands, Switzerland and 21 other countries.