How to Build a Domain Intelligence Tool in JavaScript (DNS + Geolocation + Screenshots)

📰 Dev.to · Ozor

Learn to build a domain intelligence tool in JavaScript that fetches DNS records, geolocates servers, and captures screenshots using free APIs

intermediate Published 5 Mar 2026
Action Steps
  1. Fetch DNS records using a free DNS API
  2. Geolocate servers using a geolocation API
  3. Capture screenshots of websites using a screenshot API
  4. Combine the data into a single tool
  5. Test the tool with example domains
Who Needs to Know This

This tool can benefit security researchers, pentesters, and developers who need to gather domain intelligence, and can be integrated into existing workflows by DevOps and security teams

Key Insight

💡 You can build a powerful domain intelligence tool with minimal code using free APIs

Share This
🔍 Build a domain intel tool in JS with free APIs! 📍 DNS, geolocation, and screenshots in <120 lines of code

Key Takeaways

Learn to build a domain intelligence tool in JavaScript that fetches DNS records, geolocates servers, and captures screenshots using free APIs

Full Article

Build a domain recon tool that pulls DNS records, geolocates servers, and captures screenshots — all with free APIs and under 120 lines of code.
Read full article → ← Back to Reads

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