Nessus vs Qualys
A detailed comparison to help you choose between Nessus and Qualys.
Nessus Industry-standard vulnerability scanner. | Qualys Cloud-based vulnerability management and compliance. | |
|---|---|---|
| Rating | 4.5 (396 reviews) | 4.4 (162 reviews) |
| Pricing Model | freemium | paid |
| Starting Price | From $0/mo | From $0/mo |
| Best For | Best for users seeking privacy and security tools | Best for users seeking privacy and security tools |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | — | — |
Nessus
View full Nessusreview →Qualys
Pros
- + Multiple sensor types: scanners, agents, passive sensors
- + Agent-based continuous scanning workflow
- + External scanning via Qualys-hosted Internet Scanner option
- + Authenticated web app scanning with Selenium script replay
- + Modular platform: VMDR, patch, monitoring apps
Cons
- - Pricing is quote-based and module-dependent
- - Not open-source; limited transparency into internals
- - Setup complexity: sensors, scoping, authentication tuning
- - Not designed for consumer privacy or anonymity
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