Tool for analysis of domain records collected from open sources
Ondřej Dohnal, Jan Jeřábek · 2025
The Domain Name System (DNS) enables access to online resources via human-readable domain names, but retrieving subdomain information requires open-source intelligence (OSINT) platforms like VirusTotal or CRT.sh, which differ in data formats and retrieval methods. This paper introduces a tool that automates the collection, processing, and analysis of DNS records from multiple OSINT sources, handling key records, removing duplicates, and supporting standardized output formats (YAML, JSON). With a modular and extensible design, the tool ensures efficiency, accuracy, and reliability through asynchronous data fetching and rigorous validation, benefiting security researchers, network administrators, and forensic analysts. Future improvements may expand OSINT sources and enhance analytical capabilities for better domain intelligence.