Wappalyzer

Purpose: Perform reconnaissance on the front end of your favorite targets. Does your client really like another website from a competitor or admired company? Are you wondering how a site performed a key piece of functionality or what frameworks make up their front end so you can gain ideas on how to provide certain aesthetics and functionality? Then try WAPPALYZER, the finest in web app analyzers that determines what frameworks a site has by analyzing its source code. 

There are many ways you can use Wappalyzer. The 2 most straightforward are: 

• You can visit wappalyzer.com and use their site to perform lookups of the frameworks of any of your favorite sites. 

• You can download the browser extension from https://www.wappalyzer.com/download