Market Share by Top Websites

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

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

Websites Categories

1 Ubuntu has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Travel, Adult and 164 other categories.

2 CentOS is leading in Business & Industry, Internet & Telecom, Shopping, Marketing & Advertising and 72 other categories.


1 Ubuntu is leading in most countries, including United States, Germany, Russia, France and 148 other countries.

2 CentOS is leading in Japan, China, Taiwan, Czech Republic and 61 other countries.