Features, pricing, ratings, and pros and cons, compared head to head.
Amass is a free external attack surface management tool. DDactic Attack Surface Discovery is a commercial external attack surface management tool by DDactic. Compare features, ratings, integrations, and community reviews side by side to find the best external attack surface management fit for your security stack. Independent and vendor-neutral: our scores and rankings are earned, never bought — sponsored placement is always labeled.
Based on our analysis of core features, integrations, here is our conclusion:
Security teams building reconnaissance automation into their reconnaissance workflow should start with Amass because it outperforms commercial tools at subdomain enumeration speed and catches assets that paid solutions miss through its multi-source passive collection approach. The 14,260 GitHub stars reflect sustained adoption by practitioners who've validated it against their own external asset inventories. Skip this if you need managed threat intelligence feeds, API-based asset tagging, or risk scoring; Amass is a discovery engine, not an asset management platform.
Amass is an open-source OWASP tool for comprehensive attack surface mapping and asset discovery through domain reconnaissance and subdomain enumeration.
Scans domains to discover attack surface, vulnerabilities, and generate hardening
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Common questions about comparing Amass vs DDactic Attack Surface Discovery for your external attack surface management needs.
Amass: Amass is an open-source OWASP tool for comprehensive attack surface mapping and asset discovery through domain reconnaissance and subdomain enumeration..
DDactic Attack Surface Discovery: Scans domains to discover attack surface, vulnerabilities, and generate hardening. built by DDactic..
Both serve the External Attack Surface Management market but differ in approach, feature depth, and target audience.
Amass is open-source with 14,260 GitHub stars. DDactic Attack Surface Discovery is developed by DDactic founded in 2026-01-01T00:00:00.000Z. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Amass and DDactic Attack Surface Discovery serve similar External Attack Surface Management use cases: both are External Attack Surface Management tools, both cover Subdomain Enumeration, DNS Security, Reconnaissance. Key differences: Amass is Free while DDactic Attack Surface Discovery is Commercial, Amass is open-source. Review the feature comparison above to determine which fits your requirements.
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