🆚 Microsoft IIS vs. Tomcat
- 📈 Microsoft IIS is three times more popular than Tomcat.
- 🌍 Microsoft IIS is more popular in the United Kingdom, Italy, and China.
- 🌎 Tomcat is more popular in the United States, New Zealand, and Indonesia.
TomcatType
About
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.
Apache Tomcat is an open-source 
Java application server that implements the 
Jakarta Servlet, 
Jakarta Server Pages, Jakarta Expression Language, and Jakarta 
WebSocket specifications.
It provides a servlet container and JSP engine for running Java web applications, supports HTTP/2 and virtual threads, implements a curated subset of Jakarta EE for lightweight deployment, and offers TLS certificate reload without downtime.
Headquarters
tomcat.apache.orgPricing
Categories
Popularity
Determined by the number of sites using each technology.
Market share
Popularity by country
Determined by the number of sites detected from each country.
Awards
- 🥇 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.
- ⭐ 4th most popular in the United States in the Web Servers category.
- ⭐ 4th most popular in New Zealand in the Web Servers category.
- ⭐ 5th most popular in the United Kingdom in the Web Servers category.
- ⭐ 5th most popular in Australia in the Web Servers category.
- ⭐ 5th most popular in Canada in the Web Servers category.
Popularity by domain category
Determined by the number of sites in each category.
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.