darkweb·scanner

Data source · OSINT

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theHarvester.
Correlated. One report.

theHarvester is a long-standing open-source OSINT tool that aggregates public intelligence about a domain from many free sources in a single pass.

About the source

What is theHarvester?

darkweb-scanner runs theHarvester across keyless sources (certificate transparency, search engines, DNS datasets, and more) to enumerate emails, employee names, subdomains, and hosts tied to a domain — the raw material attackers use for phishing and targeting. It also integrates the Hudson Rock module for breach signal.

Maintainer
Christian Martorella / community
Coverage
Emails, subdomains, hosts, employees
License
GPL-2.0 (run as a subprocess)

Capabilities

What theHarvester covers

The source's scope — we query it against your domain and report the exposures we find.

Keyless sources

Pulls from dozens of free public datasets — no paid API keys required for core coverage.

Email & people discovery

Surfaces the addresses and names that fuel phishing and credential-stuffing campaigns.

Breach module

Integrates Hudson Rock's infostealer feed directly into collection.

Headless & scriptable

Runs fully automated with JSON output, orchestrated by our worker.

Surface area

Where it looks

EmailsEmployee namesSubdomainsHosts

Use cases

When it earns its keep

Phishing-exposure review

See which employee emails and names are publicly harvestable.

Footprint mapping

Combine with Shodan to build a full external picture of a domain.

OSINT for engagements

Jump-start recon without wiring up a dozen tools by hand.

Other data sources

Add another source

One credit. One domain. One report.

Run theHarvester against a domain and get a severity-ranked exposure PDF. Credits never expire.