Bot verification is the process of confirming that an automated crawler or API client is really who it claims to be. A User-Agent string alone is not enough, because it is self-reported and can be copied by any attacker. Stronger checks may include published IP ranges, reverse DNS lookups, signed requests, or other cryptographic authentication methods.
This matters because many security controls treat known bots differently from ordinary traffic. Search engines, monitoring crawlers, and partner integrations may be allowed higher request rates or broader access. If an attacker can impersonate that identity, they can blend into trusted traffic while probing for sensitive files, misconfigurations, or exposed credentials. Good defenses combine bot verification with least-privilege access, logging, rate limits, and blocking secrets from public web paths. The goal is to verify the caller first, then decide what it is allowed to see.