Sublist3r – Fast Subdomains Enumeration Tool

Sublist3r is a python tool designed to enumerate subdomains of websites using OSINT. It helps penetration testers and bug hunters collect and gather subdomains for the domain they are targeting.

Sublist3r enumerates subdomains using many search engines such as Google, Yahoo, Bing, Baidu and Ask. Sublist3r also enumerates subdomains using Netcraft, Virustotal, ThreatCrowd, DNSdumpster and ReverseDNS.

Sublist3r - Fast Subdomains Enumeration Tool
Sublist3r – Fast Subdomains Enumeration Tool

subbrute was integrated with Sublist3r to increase the possibility of finding more subdomains using bruteforce with an improved wordlist. The credit goes to TheRook who is the author of subbrute.

Function Usage:

  • domain: The domain you want to enumerate subdomains of.
  • savefile: save the output into text file.
  • ports: specify a comma-sperated list of the tcp ports to scan.
  • silent: set the tool to work in silent mode during the execution (helpful when you don’t need a lot of noise).
  • verbose: display the found subdomains in real time.
  • enable_bruteforce: enable the bruteforce module.
  • engines: (Optional) to choose specific engines.

The tool currently supports Python 2 and Python 3.

  • The recommended version for Python 2 is 2.7.x
  • The recommended version for Python 3 is 3.4.x


  • TheRook – The bruteforce module was based on his script subbrute.
  • Bitquark – The Subbrute’s wordlist was based on his research dnspop.

You can read more and download this tool over here:

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