Amass OWASP web scanner

The OWASP Amass Project performs network mapping of attack surfaces and external asset discovery using open source information gathering and active reconnaissance techniques.

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GitHub - owasp-amass/amass: In-depth Attack Surface Mapping and Asset DiscoveryGitHub

Article

Hakluke’s Guide to Amass — How to Use Amass More Effectively for Bug BountiesMedium