Apache Tomcat Coyote
42,220 websites

Apache Tomcat Coyote is free to use

https://tomcat.apache.org/tomcat-4.1-doc/config/coyote.html

The Coyote HTTP/1.1 Connector element represents a Connector component that supports the HTTP/1.1 protocol. It enables Catalina to function as a stand-alone web server, in addition to its ability to execute servlets and JSP pages. A particu...

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Zend Server
3,643 websites

Zend Server offers both free and paid options

http://www.zend.com/en/products/zend_server

Zend Server, the Professional PHP Distribution with Advanced Value-add Capabilities

Market Share by Top Websites

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

2 In terms of market share, Zend Server is clearly lagging behind, losing to Apache Tomcat Coyote in all segments.

Websites Categories

1 Apache Tomcat Coyote has better usage coverage in more websites categories. Including Science & Education, Computers Electronics & Technology, Law & Government, Finance and 19 other categories.

2 Zend Server is leading in Adult.

Geography

1 Apache Tomcat Coyote is leading in most countries, including China, United States, South Korea, France and 138 other countries.

2 Zend Server is leading in Guyana.