Sigurls - A Reconnaissance Tool, It Fetches URLs From AlienVault's OTX, Common Crawl, URLScan, Github And The Wayback Machine Sigurls - A Reconnaissance Tool, It Fetches URLs From AlienVault's OTX, Common Crawl, URLScan, Github And The Wayback Machine Reviewed by Zion3R on 8:30 AM Rating: 5