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List of Port Scanning using Passive Recon

Following is the list and its respective links of port scanners which are hosted publicly and can be used by a Penetration Tester for Passive Reconnaissance (Passive recon is an attempt to gain information about targeted computers and networks without actively engaging with the systems).

  1. You Get Signal –
  2. View DNS Info –
  3. Namp Online Scanner –
  4. IP Fingerprints –
  5. Port Checker –
  6. Pentest Tools –
  7. Whatismyip Port Scanner –

These scanners are specifically used and helpful during an engagement where the client wants to know the attack scenarios from the perspective of an unknown attacker.

Happy Hacking 😊