Apache Tomcat
49,024 websites

Apache Tomcat is free to use

http://tomcat.apache.org/

The Apache Tomcat software is an open source implementation of the Java Servlet, JavaServer Pages, Java Expression Language and Java WebSocket technologies. The Java Servlet, JavaServer Pages, Java Expression Language and Java WebSocket spe...

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Citrix NetScaler
43,573 websites

Citrix NetScaler offers both free and paid options

http://www.citrix.com/products/netscaler-application-delivery-controller/overview.html

Citrix NetScaler is an all-in-one web application delivery controller that makes applications run five times better, reduces web application ownership costs, and makes sure that applications are always available. It is deployed in thousand...

Market Share by Top Websites

1 Apache Tomcat is leading in The Entire Web.

2 Citrix NetScaler is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.

Websites Categories

1 Apache Tomcat has better usage coverage in more websites categories. Including Science & Education, Computers Electronics & Technology, Law & Government, Vehicles and 10 other categories.

2 Citrix NetScaler is leading in Finance, Health, Arts & Entertainment, Adult and 6 other categories.

Geography

1 Citrix NetScaler is leading in most countries, including United States, Japan, Turkey, India and 93 other countries.

2 Apache Tomcat is leading in China, South Korea, France, Italy and 50 other countries.