Kentico
10,715 websites

Kentico offers both free and paid options

http://www.kentico.com/

Kentico CMS for ASP.NET gives marketers and developers the ability to create websites. A solution for website, store, community and on-line marketing initiatives.

VS

vBulletin
7,250 websites

vBulletin costs money

http://www.vbulletin.com

vBulletin is a professional, affordable community forum solution. Thousands of clients, including many industry leading blue chip companies, have chosen vBulletin - It's the ideal choice for any size of community.

Market Share by Top Websites

1 Kentico is leading in Top 10K Sites and The Entire Web.

2 vBulletin is leading in Top 100K Sites and Top 1M Sites.

Websites Categories

1 vBulletin has better usage coverage in more websites categories. Including Computers Electronics & Technology, Vehicles, Games, Arts & Entertainment and 9 other categories.

2 Kentico is leading in Business & Consumer Services, Finance, Health, Science & Education and 7 other categories.

Geography

1 vBulletin is leading in most countries, including Russia, Germany, Egypt, Vietnam and 67 other countries.

2 Kentico is leading in United States, Canada, Australia, United Kingdom and 58 other countries.