ActiveDNS icon
ActiveDNS icon

ActiveDNS

ActiveDNS is a free DNS intelligence search engine for discovering subdomains, finding domains associated with an IP address, and exploring infrastructure by ASN.

ActiveDNS screenshot 1

Cost / License

  • Free
  • Proprietary

Application type

Platforms

  • Online
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Features

  1.  Ad-free
  2.  No Tracking
  3.  No registration required
  4.  OSINT
  5.  Web-Based

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ActiveDNS information

ActiveDNS was added to AlternativeTo by elnerd on and this page was last updated .

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What is ActiveDNS?

ActiveDNS is a free DNS intelligence search engine for exploring relationships between domain names, IP addresses, and autonomous systems. It aims to maintain a current and accurate snapshot of active DNS records, supporting security research, penetration testing, and infrastructure investigations.

Search by domain, IP address, or ASN to:

  • Discover subdomains and their associated IP addresses.
  • Find domain names associated with an IP address.
  • Explore infrastructure associated with an autonomous system.
  • View timestamps showing when DNS relationships were observed.

Its growing database makes it easy to explore internet infrastructure and uncover connections through a simple web interface.