Overview
A free domain research tool that discovers hosts related to a domain and visualizes the attack surface.
- Completely free and very fast.
- Generates a visual map of the domain's structure.
- Exports results to Excel (.xlsx).
- No official API (though unofficial scripts exist).
- Results are a snapshot and may not cover every subdomain.
- Subdomain discovery.
- GeoIP mapping of servers.
- Banner grabbing for identified hosts.
- Quickly mapping out a company's external infrastructure.
- Finding forgotten subdomains or test servers.
Example view from DNSdumpster—tap to open full-screen for closer inspection.