Anomali Attack Surface Management vs Knock: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
Anomali Attack Surface Management is a commercial external attack surface management tool by Anomali. 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 VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Anomali Attack Surface Management
Mid-market and enterprise security teams drowning in unknown external assets will find immediate value in Anomali Attack Surface Management's discovery engine, which maps your entire digital footprint across domains, cloud, SaaS, and hardware without requiring agent deployment. The platform's continuous monitoring paired with risk-based prioritization means you stop chasing every vulnerability and focus on what actually exposes you to attack; its integration with Anomali Match Cloud threat intelligence directly connects your surface to known adversary tactics. This tool assumes you have the resources to act on what it finds, so lean security ops teams relying on a small contractor to handle external risk should look elsewhere.
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.
