What is the difference between ExposeLens vs Knock?

**ExposeLens**: Domain exposure monitoring tool for leaked creds, subdomains & dark web data. built by JDT SecLabs. Core capabilities include Domain exposure mapping, Subdomain discovery and recursive scanning, Leaked credential detection and breach data access.. **Knock**: A subdomain scan tool that helps you find subdomains of a given domain.. Both serve the External Attack Surface Management market but differ in approach, feature depth, and target audience.

Who makes ExposeLens vs Knock?

**ExposeLens** is developed by JDT SecLabs founded in 2025-01-01T00:00:00.000Z. **Knock** is open-source with 4,054 GitHub stars. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Is ExposeLens a good alternative to Knock?

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

ExposeLens vs Knock: Features, Integrations, Reviews (2026) | CybersecTools

ExposeLens vs Knock: Side-by-Side Comparison (2026)

Features, pricing, ratings, and pros & cons — compared head-to-head.

ExposeLens is a commercial external attack surface management tool by JDT SecLabs. Knock 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.

CST Verdict

Based on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:

Knock

Security teams doing external attack surface reconnaissance on a budget should start with Knock; it's free, it works, and the 4,054 GitHub stars reflect actual adoption rather than marketing hype. The tool excels at the narrow job of subdomain enumeration, which maps NIST Govern and Identify functions by forcing you to know what's actually exposed before you can defend it. Skip Knock if you need continuous monitoring or API integration into your existing ASM stack; this is a point-in-time scanner you run manually, not a platform that feeds ongoing discovery into your risk register.

Data verified Jun 2026