Amass is a free external attack surface management solution. DDactic Attack Surface Discovery is a commercial external attack surface management solution by DDactic. Features, integrations, deployment and the company behind each one, side by side.
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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Based on what each listing shows: deployment, company size, price and open source.
Amass fits if you need to run it on your own servers, you need a free product and you want an open-source product.
DDactic Attack Surface Discovery fits if you want a cloud product.
Common questions when comparing Amass vs DDactic Attack Surface Discovery for external attack surface management.
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.
The table above shows where their features, integrations, deployment and company size fit differ.
Amass is open-source with 14,260 GitHub stars. DDactic Attack Surface Discovery is made 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.
Often, yes. Amass and DDactic Attack Surface Discovery are both External Attack Surface Management products, and both cover Subdomain Enumeration, DNS Security, Reconnaissance. Key differences: Amass is Free while DDactic Attack Surface Discovery is Commercial, Amass is open-source. Use the table above to see where features, deployment and company size fit differ.