1. Layer 7 server load balancer

  2. ScaleArc offers database performance monitoring software for SQL server, MySQL & Oracle. Ensure zero downtime & database scalability with no app changes.

  3. Reliable, High Performance TCP/HTTP Load Balancer

  4. A high performance free open source web server powering busiest sites on the Internet.

  5. Apache ZooKeeper is an effort to develop and maintain an open-source server which enables highly reliable distributed coordination.

  6. Oracle WebLogic Suite is an application server for building and deploying enterprise Java EE applications.

  7. IBM WebSphere Application Server provides flexible Java EE 7 runtime environments available on premises or across any public, private cloud.

  8. Phusion Passenger is a multi-language (Ruby, Python, Node) web & app server which can integrate into Apache and Nginx

  9. WildFly is a flexible, lightweight application server.

  10. Unicorn is an HTTP server for Rack applications designed to only serve fast clients on low-latency, high-bandwidth connections.

  11. Web2py is an open source web application framework.

  12. A secure, fast, compliant, and very flexible web-server that has been optimized for high-performance environments