Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Nibbler - Free tool for testing how good your website is, and what you can do to improve it. Check accessibility, SEO, social media, compliance and more.
Microsoft IIS - Internet Information Services is a web server for Microsoft Windows
Pennywise - Cross-platform application to open any website or media in a floating window
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
Zercurity - Monitor your infrastructure for policy non-compliance, live