https://github.com/projectdiscovery/subfinder does this, but it explains all the methods and lets you choose to only do a passive scan. - Source: Hacker News / 9 months ago
My main source is Certificate Transparency, which is kind of a database of TLS certs created so far. But use external tools like Subfinder or Amass. Source: over 1 year ago
Do you know an article comparing Subfinder to other products?
Suggest a link to a post with product alternatives.
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