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Skipfish is an active web application security reconnaissance tool. It prepares an interactive sitemap for the targeted site by carrying out a recursive crawl and dictionary-based probes. The resulting map is then annotated with the output from a number of active (but hopefully non-disruptive) security checks. The final report generated by the tool is meant to serve as a foundation for professional web application security assessments.

Downloads and online tools for testing cross-browser web design. Focuses strongly on MSIE but may still be useful.

Sitespeed.io is an open source tool that helps you analyze and optimize your website speed and performance based on performance best practices. It collects data from multiple pages on your website, analyze the pages using performance best practices rules and output the result as HTML-files or JUnit XML.

Mock your HTTP responses to test your REST API.

We all like to build software which is reliable, but every once in a while it seems like a good idea to demo something still in it's unreliable infancy. Google Chrome has a little known feature which can help. Record modes let you record every request Chrome makes. Playback mode serves requests out of that recorded cache just as if they were being loaded on the spot. It doesn't record where you click or what you open, just every request as it moves over the wire.

Kali Linux is an open source project that is maintained and funded by Offensive Security, a provider of world-class information security training and penetration testing services. In addition to Kali Linux, Offensive Security also maintains the Exploit Database and the free online course, Metasploit Unleashed.

CasperJS is an open source navigation scripting & testing utility written in Javascript and based on PhantomJS — the scriptable headless WebKit engine. It eases the process of defining a full navigation scenario and provides useful high-level functions, methods & syntactic sugar for doing common tasks such as: * defining & ordering browsing navigation steps * filling & submitting forms * clicking & following links * capturing screenshots of a page (or part of it) * testing remote DOM * logging events * downloading resources, including binary ones * writing functional test suites, saving results as JUnit XML * scraping Web contents

This is the first of a two part introduction to writing testable Javascript UI code. The first article presents a basic sample application containing several common anti-patterns and their solutions.

In the second article, the application will be refactored using the described techniques, a simple XHR mock will be presented, and add a test suite will be added to help future developers maintain the code.

w3af is a Web Application Attack and Audit Framework. The project's goal is to create a framework to find and exploit web application vulnerabilities that is easy to use and extend..