About Reverse IP Lookup

Passive DNS observations for IP investigations

What this tool does

reverseips.com searches passive DNS observations for A and AAAA records whose value matches a public IP address. The free page shows a sample and the observed count when data is available.

Hosts and domains

A host here is a DNS name, such as example.com or api.example.com. The sample includes root domains and subdomains; each distinct hostname counts as one host.

Method and limits

Data comes from Profundis.io passive DNS. A result means a host was observed resolving to the IP at some point; it does not prove the host is currently hosted there, owned by the same party, or reachable over HTTP. Empty results mean no match was returned for this free lookup, not that no host ever resolved to the address.

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Contact

For questions, feedback, or security reports, use Profundis contact or the security.txt policy.