In threat intelligence and adversary emulation, initial reconnaissance usually means spending half your time jumping between single-purpose account checkers. If you're still relying solely on legacy utilities like Holehe or Sherlock, you're likely running into rate-limiting walls and missing crucial linked identities.
I recently tested user-scanner, an open-source 2-in-1 Python OSINT engine that unifies email registration checking, username profiling, and recursive pivoting into a single workflow.
Here is my breakdown of how it stacks up and how to use it for fast target correlation.
Technical Comparison Matrix
Core Feature / Parameter
