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subfinder

A subdomain discovery tool that discovers valid subdomains for websites. Designed as a passive framework to be useful for bug bounties and safe for penetration testing. More information: https://github.com/subfinder/subfinder.

  • Find subdomains for a specific domain:

subfinder -d {{example.com}}

  • Show only the subdomains found:

subfinder --silent -d {{example.com}}

  • Use bruteforcing to find subdomains:

subfinder -d {{example.com}} -b

  • Remove wildcard subdomains:

subfinder -nW -d {{example.com}}

  • Use a given comma-separated list of resolvers:

subfinder -r {{8.8.8.8}},{{1.1.1.1}} -d {{example.com}}