Apache Tomcat is an open source software implementation of the Java Servlet and JavaServer Pages technologies.
https://tomcat.apache.org/connectors-doc/webserver_howto/apache.html
Operating Systems and Servers
Get access to data on 371,618 websites that are Apache Tomcat JK Customers. We know of 23,300 live websites using Apache Tomcat JK and an additional 348,318 sites that used Apache Tomcat JK historically and 9,018 websites in the United States.
Get a list of 371,618 websites using Apache Tomcat JK which includes location information, hosting data, contact details, 23,300 currently live websites and an additional 56,999 domains that redirect to sites in this list. 348,318 sites that used this technology previouslyand 9,018 websites in the United States currently using Apache Tomcat JK.
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