SPOFCheck : A CLI tool for detecting frontend SPOF, mainly blocking scripts and CSS
Siege : Siege is an http load testing and benchmarking utility. It was designed to let web developers measure their code under duress, to see how it will stan...
Locust : A modern load testing framework
Define user behaviour with Python code, and swarm your system with millions of simultaneous users.
Litmus : Test and track your emails. Email previews, analytics and spam filter testing.
WebScarab : WebScarab is a framework for analysing applications that communicate using the HTTP and HTTPS protocols.