HTTP Security Report : Get an instant report of how your website measures up to the best practices.
Check connection encryption, content security, information disclosure and...
The Big List of Naughty Strings : The Big List of Naughty Strings is a list of strings which have a high probability of causing issues when used as user-input data.
mitmproxy : mitmproxy is your swiss-army knife for debugging, testing, privacy measurements, and penetration testing. It can be used to intercept, inspect, modify...
XSS Filter Evasion Cheat Sheet - OWASP : This article is focused on providing application security testing professionals with a guide to assist in Cross Site Scripting testing.
This article explains what secure headers are and how to implement these headers in Rails, Django, Express.js, Go, Nginx, and Apache.