domain-intel

Passive domain reconnaissance without API keys is achieved by using Python stdlib to resolve DNS records, inspect SSL certificates, query WHOIS data, and discover subdomains from certificate transparency logs. This approach requires no external dependencies or authentication.

Subdomain discovery from certificate transparency logs is supported natively. The Skill queries these logs to identify subdomains associated with a target domain, providing infrastructure insights without active scanning or external API dependencies.

SSL certificate inspection checks TLS certificate details including expiry dates, cipher suites, and Subject Alternative Names (SANs). It uses Python stdlib to connect and extract certificate information for security audits.

Resolving multiple DNS record types for infrastructure investigation is handled by resolving A, AAAA, MX, NS, TXT, and CNAME records. It supports bulk analysis, running multiple checks on multiple domains in parallel.

Domain availability checks are supported for bulk analysis. It assesses domain registration status passively and runs multiple checks on multiple domains in parallel, making it suitable for large-scale infrastructure investigation.

Python stdlib is used for WHOIS lookup and domain ownership verification to eliminate external dependencies. It extracts registration information, registrar details, and dates without requiring API keys, ensuring a self-contained security audit.