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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:

  • Find subdomains for a specific domain:

subfinder -d {{}}

  • Show only the subdomains found:

subfinder --silent -d {{}}

  • Use a brute-force attack to find subdomains:

subfinder -d {{}} -b

  • Remove wildcard subdomains:

subfinder -nW -d {{}}

  • Use a given comma-separated list of resolvers:

subfinder -r {{}},{{}} -d {{}}