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, Marketing & Advertising, People & Society, Adult and 153 other categories.

2 CentOS is leading in Business & Industry, Internet & Telecom, Shopping, Web Hosting and 83 other categories.


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

2 CentOS is leading in Japan, United Kingdom, Mexico, Italy and 81 other countries.