theHarvester
Email · Subdomain · Name harvesting from 40+ public sources
Passive/semi-passive OSINT harvester. Queries search engines, Certificate Transparency logs, DNS datasets, and Shodan to surface email addresses, subdomains, virtual hosts, and employee names tied to a target domain.
Use Cases
- ▸Enumerate all subdomains of a target org before engagement
- ▸Surface email patterns for spear-phishing risk assessment
- ▸Cross-reference Certificate Transparency for shadow IT assets
Key Flags
-d example.com# Target domain-b all# Use all data sources-l 200# Limit results to 200-f report# Output to HTML/XML reportData Sources
Deployment
Run as Docker container or virtualenv worker. Wire results through the Python indexer pipeline inservices/indexerfor de-duplication before surfacing in the directory.