Censys Python Library vs ctlogs.dev: Side-by-Side Comparison (2026)

Censys Python Library: An easy-to-use and lightweight API wrapper for Censys APIs with support for Python 3.8+..

ctlogs.dev: Fast Certificate Transparency search and JSON API for subdomain reconnaissance. built by Apps34. Core capabilities include Real-time Certificate Transparency Search, Automated Subdomain Enumeration, High-Performance REST JSON API..

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

Censys Python Library is open-source with 457 GitHub stars. ctlogs.dev is developed by Apps34. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Censys Python Library and ctlogs.dev serve similar External Attack Surface Management use cases: both are External Attack Surface Management tools, both cover Reconnaissance. Key differences: Censys Python Library is Free while ctlogs.dev is Commercial, Censys Python Library is open-source. Review the feature comparison above to determine which fits your requirements.