SSL Server Test : This free online service performs a deep analysis of the configuration of any SSL web server on the public Internet.
mitmproxy : mitmproxy is your swiss-army knife for debugging, testing, privacy measurements, and penetration testing. It can be used to intercept, inspect, modify...
webhint : webhint is a linting tool that will help you with your site's accessibility, speed, security and more, by checking your code for best practices and co...
Codeception : Codeception PHP Testing Framework is designed to work just out of the box. This means its installation requires minimal steps and no external dependen...
Diagnostic.css : Diagnostic.css is a stylesheet which allows the user to test for common errors in a page's markup.
Also : https://github.com/karlgroves/diagnostic.css
Memorable site for testing clients against bad SSL configs.
