Market Share by Top Websites

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

2 In terms of market share, Phusion Passenger is clearly lagging behind, losing to IIS in all segments.

Websites Categories

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

2 Phusion Passenger hasn't got a lead over IIS in any websites category.

Geography

1 IIS is leading in most countries, including United States, China, United Kingdom, Italy and 157 other countries.

2 Phusion Passenger hasn't got a lead over IIS in any country.