Micro-Topic 9.1: What Is Fingerprinting?
Micro-Topic 9.2: Banners, Headers & Error Messages
Micro-Topic 9.3: Tech Stack Clues (Files, URLs, and Content)
Micro-Topic 9.4: Tools for Web & Service Fingerprinting
Micro-Topic 9.5: Risks of Known Stacks & Countermeasures