🆚 Cowboy vs. Microsoft IIS
- 📈 Microsoft IIS is much more popular than Cowboy.
- 🌎 Microsoft IIS is more popular in the United States, the United Kingdom, and Italy.
- 🌍 Cowboy is more popular in the British Virgin Islands, the Marshall Islands, and Palau.
Statistics based on 3.8M+ analyzed websites. About this data
Type
Web server
Web server
About
Cowboy is a small, fast, and modern HTTP server for 
Erlang that supports 
WebSocket, HTTP/2, and REST.
Microsoft Internet Information Services (IIS) is an extensible web server developed by Microsoft for 
Windows systems.
It has a modular architecture with standalone components, supports HTTP, 
HTTP/2, HTTP/3, HTTPS, 
FTP, FTPS, SMTP, and NNTP protocols, enables worker process isolation through application pools, and provides native integration with ASP.NET and ASP.NET Core.
Headquarters
France
Redmond, Washington, United States
Pricing
Free ✔️ Open source
Free version ✔️ IIS Express
Bundled with Windows Server, which is $1,176+
Categories
Web Servers › Rank #13
Web Servers › Rank #4
Popularity
Determined by the number of sites using each technology.
The Microsoft IIS web server is 56 times more popular than Cowboy.
Total websites
Market share
Web Servers
Popularity by country
Determined by the number of sites detected from each country.
Microsoft IIS is more popular in the United States, the United Kingdom, and Italy, while Cowboy is more popular in the British Virgin Islands, the Marshall Islands, and Palau.
United States
United Kingdom
Italy
Turkey
China
India
Netherlands
Czech Republic
Brazil
Canada
Awards
- ⭐ 4th most popular in the British Virgin Islands in the Web Servers category.
- ⭐ 6th most popular in the Philippines in the Web Servers category.
- ⭐ 10th most popular in the Netherlands in the Web Servers category.
- 🔥 11st most popular in Brazil in the Web Servers category.
- 🥇 Most popular in Cambodia in the Web Servers category.
- 🥇 Most popular in Brunei Darussalam in the Web Servers category.
- 🥉 Third most popular in Turkey in the Web Servers category.
- 🥉 Third most popular in China in the Web Servers category.
- 🥉 Third most popular in the Czech Republic in the Web Servers category.
Popularity by domain category
Determined by the number of sites in each category.
Microsoft IIS is more popular than Cowboy in all market segments.
Business
Marketing/Merchandising
Education/Reference
Online Shopping
Travel
Health
Internet Services
Software/Hardware
Public Information
Sports
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
🗃️ About This Data
- We evaluate the popularity of technologies based on the number of websites where we detect their usage.
- Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
- This report is based on the analysis of 3,814,833 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.