Security News > 2025 > February > BadDNS: Open-source tool checks for subdomain takeovers

BadDNS is an open-source Python DNS auditing tool designed to detect domain and subdomain takeovers of all types. BadDNS modules cname – Check for dangling CNAME records and interrogate them for subdomain takeover opportunities ns – Check for dangling NS records and interrogate them for takeover opportunities mx – Check for dangling MX records and assess their base domains for availability nsec – Enumerate subdomains by NSEC-walking references – Check HTML content for links or … More → The post BadDNS: Open-source tool checks for subdomain takeovers appeared first on Help Net Security.

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https://www.helpnetsecurity.com/2025/02/03/baddns-open-source-tool-check-domain-subdomain-takeover/