XAMPP - XAMPP is a free and open-source cross-platform web server that is primarily used when locally developing web applications.
PagerDuty - Cloud based monitoring service
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
VictorOps - We make on-call suck less & help teams to solve problems faster.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.