censys-enumeration vs SurfaceDiff: Side-by-Side Comparison (2026)

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

SurfaceDiff: Continuous external attack surface monitoring that shows what changed between scans. built by SurfaceDiff. Core capabilities include Domain baseline scan for publicly exposed assets, Subdomain discovery, DNS record enumeration..

Both serve the External Attack Surface Management market but differ in approach, feature depth, and target audience.

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

censys-enumeration and SurfaceDiff serve similar External Attack Surface Management use cases: both are External Attack Surface Management tools, both cover TLS, Subdomain Enumeration, Reconnaissance. Key differences: censys-enumeration is Free while SurfaceDiff is Commercial, censys-enumeration is open-source. Review the feature comparison above to determine which fits your requirements.