SubFinder: Subdomain tracking tool

SubFinder is a subdomain tracking tool that uses various techniques to detect them.

He aims to become his successor sublist3r. It can also perform a simple bruteforce process if needed. The tool is highly customizable and its code is designed with a modular approach that makes it easy to add functions and remove errors.


  • Simple and modular code base that makes any task easy.
  • Fast and powerful analysis unit and wildcard elimination module
  • curated passive sources to maximize results (26 sources so far)
  • Multiple output formats supported (Json, File, Stdout)
  • Optimized in terms of speed, very fast and  light in resources
  • Support Stdin  and  stdout for integration into workflows


go get


./subfinder -h

Information on using the program, you will find here.

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