LeetSubdomain

LeetSubdomain is a subdomain enumeration tool designed for penetration testers and security researchers. It helps you map an organization's external attack surface by discovering subdomains that are not immediately obvious.

• Passive enumeration: Gathers subdomains from public sources like search engines, certificate transparency logs, and DNS records without sending traffic to the target.
• Active enumeration: Performs brute-force and dictionary-based discovery to find subdomains not indexed by public sources.
• Multiple output formats: Saves results in plain text, JSON, or CSV for easy integration with other security tools.
• Rate limiting: Controls request speed to avoid overwhelming target servers or triggering rate limits.
• Recursive scanning: Automatically discovers subdomains of subdomains, revealing deeper layers of the target infrastructure.