censys-enumeration vs crt.guru: side-by-side comparison (2026)

censys-enumeration: A script to extract subdomains/emails for a given domain using SSL/TLS certificate dataset on Censys.

crt.guru: External TLS cert monitoring with expiry alerts, vuln scanning & compliance reports. Built by Crt.guru.

The table above shows where their features, integrations, deployment and company size fit differ.

censys-enumeration is open-source with 152 GitHub stars. crt.guru is made by Crt.guru. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. censys-enumeration and crt.guru are both External Attack Surface Management products, and both cover TLS, SSL. Key differences: censys-enumeration is Free while crt.guru is Commercial, censys-enumeration is open-source. Use the table above to see where features, deployment and company size fit differ.