Bulk business contact extraction pipeline for US states. Scans counties via Overpass API, crawls websites for emails/contact forms, finds missing websites via DNS guessing + DuckDuckGo HTML search, and outputs enriched data to a SQLite database.
Pipeline für die Massen-Anreicherung von US-Bundesstaaten. Scannt Landkreise, crawlt Webseiten, findet fehlende Domains via DNS + DuckDuckGo. Verifiziert auf 9 Bundesstaaten mit 19.500+ Unternehmen.
# Company Contact Extractor
## When to use this
- User asks to **find contact info** for ALL businesses in a US state
- User needs a **lead list** of businesses with phone, email, website, address
- User wants to **enrich** a list of business names with contact details from their websites
- User asks to "scrape business data" from a state or region
## 🚨 CRITICAL — Pipeline Integrity Rules (User-Enforced)
These are hard rules from the user. Violating them wastes hours of work and causes rewor