Nesca - Scanner

| Feature | | Tenable Nessus | OpenVAS | | :--- | :--- | :--- | :--- | | Pricing Model | Freemium / Perpetual license | Subscription (Annual) | Free (GPL) | | Scan Speed | Very Fast (Multi-threaded ASYNC) | Moderate | Slow (Single-threaded legacy) | | False Positives | Low (AI verification) | Moderate | High (Needs tuning) | | Web App Scanning | Deep (Headless browser) | Basic (Signature only) | None | | Cloud Integration | Native (Terraform provider) | Agent-based | Manual | | Reporting | Interactive HTML + PDF + JSON | PDF only | HTML / XML |

nesca scan 192.168.1.0/24 --quick --output report.html nesca scanner

Signal Strength: 92%.

This article provides a deep dive into the Nesca Scanner, covering its core architecture, key features, use cases, and how it compares to legacy solutions. | Feature | | Tenable Nessus | OpenVAS