Free OSINT Tool

IP & Domain Lookup

Domain Intelligence: Open-Source Edition adds current DNS snapshots, RDAP registration data, observed subdomains, historical web observations, and external OSINT pivots using open/free sources only.

Open-source data only. No paid APIs, no account required, and searches are not stored by default.

This is not complete passive DNS history. DNS results are a current snapshot.

Enter a public domain, IP address, or URL to begin.

What this tool checks

Current DNS snapshot

A, AAAA, MX, NS, TXT, CNAME, SOA, and CAA records where available.

Observed subdomains

Certificate transparency, archived URL observations, and optional hostsearch results.

Historical observations

Archived web observations and certificate observations, clearly labeled by source.

External pivots

Manual links to third-party OSINT tools. These pivots are not scraped by this tool.