Amass is a free external attack surface management tool. censys-enumeration is a free external attack surface management tool. Compare features, ratings, integrations, and community reviews side by side to find the best external attack surface management fit for your security stack.
Based on our analysis of available product data, 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.
Security teams running lean reconnaissance workflows will extract subdomains faster with censys-enumeration than querying certificate databases manually, since it automates SSL/TLS enumeration across Censys' dataset at zero cost. The 152 GitHub stars signal active use among practitioners who value simplicity over UI polish. Skip this if you need continuous monitoring or automated alerting on new discoveries; this is a one-time enumeration script, not a managed platform that rescans your attack surface on a schedule.
Amass is an open-source OWASP tool for comprehensive attack surface mapping and asset discovery through domain reconnaissance and subdomain enumeration.
A script to extract subdomains/emails for a given domain using SSL/TLS certificate dataset on Censys.
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Common questions about comparing Amass vs censys-enumeration 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..
censys-enumeration: A script to extract subdomains/emails for a given domain using SSL/TLS certificate dataset on Censys..
Both serve the External Attack Surface Management market but differ in approach, feature depth, and target audience.
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