What Is Recon-ng and How Do Ethical Hackers Use It for OSINT?
Recon-ng is an open source framework for open source intelligence (OSINT) gathering, written in Python and included in Kali Linux. It works like a console with workspaces, a built-in database and installable modules that query public sources such as DNS, certificate transparency logs and search APIs to find domains, hosts and contacts related to a target.