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Subfinder

Lists a domain's subdomains from public sources, without touching the target itself.

What you can do with it

  • Map your company's forgotten subdomains
  • Find old test sites you never took down
  • Start a security review of your own setup
Worth knowingOnly use it on domains you own or have written permission to assess.

Getting started

We haven’t written a step-by-step guide for this one yet. Our free mission shows you how to install any tool from GitHub safely, so you can try it today.

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