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 ### Anonymity Tools
 * [Tor](https://www.torproject.org/) - Free software and onion routed overlay network that helps you defend against traffic analysis.
+* [OnionScan](https://onionscan.org/) - Tool for investigating the Dark Web by finding operational security issues introduced by Tor hidden service operators.
 * [I2P](https://geti2p.net/) - The Invisible Internet Project.
 * [Nipe](https://github.com/GouveaHeitor/nipe) - Script to redirect all traffic from the machine to the Tor network.
 * [What Every Browser Knows About You](http://webkay.robinlinus.com/) - Comprehensive detection page to test your own Web browser's configuration for privacy and identity leaks.