Azure DDoS Protection vs Nessus Comparison
Azure DDoS Protection
Starting at Contact for pricing
- Small Business
Azure DDoS Protection is a comprehensive cloud-based service designed to safeguard Azure applications from Distributed Denial of Service (DDoS) attacks. It provides real-time monitoring, automatic attack mitigation, and…
Nessus
Starting at $2,790 /Year
- Free Trial
- Large Enterprises
- Medium Business
Nessus is a vulnerability scanner of its kind, giving user a complete picture of organization's security status. Instantly scan thousands of systems for the latest vulnerabilities and react to them in real time. Nessus m…
Nessus leads on user satisfaction with a 4.3-star rating across 144 reviews.
Azure DDoS Protection vs Nessus — at a glance
| Feature | Azure DDoS Protection | Nessus |
|---|---|---|
| Rating | — | 4.3 / 5 |
| Reviews | — | 144 |
| Starting price | Contact for pricing | $2,790 /Year |
| Free trial | No | Yes |
| Free version | No | No |
| Best for | Small Business | Large Enterprises, Medium Business, Small Business |
| Category | Website Security Software | Vulnerability Management Software |
| Platforms | Cloud-based | SaaS/Web/Cloud, Installed - Windows, Installed - Mac |
| API | Available | — |
| Support modes | Phone Support, Documentation | 24/7 (Live rep), Online |
| Data residency | Global | US |
Key differences between Azure DDoS Protection and Nessus
- Pricing: Nessus starts at $2,790 /Year. Azure DDoS Protection pricing is not publicly listed.
- Free trial: Nessus offers a free trial; Azure DDoS Protection does not.
- Target audience: Azure DDoS Protection is built for Small Business, while Nessus targets Large Enterprises and Medium Business.
- Deployment: Azure DDoS Protection supports Cloud-based; Nessus supports SaaS/Web/Cloud, Installed - Windows, Installed - Mac.
Azure DDoS Protection vs Nessus — find the better fit before you commit.
Which tool fits your team best
Which is actually cheaper for your team size
Where each product wins, per real buyers
Most Website Security Software tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.
Biggest differences
Features
Pricing
Buying details
Security
Buyer feedback
Integrations
Product tour
Other options
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Biggest differences
Start here before you go deeper into features.
Best for Azure users needing integrated, scalable DDoS protection.
- You run applications on Azure and want native DDoS defense
- You need automatic and adaptive attack mitigation
- You want detailed traffic analytics integrated with Azure Monitor
- Your infrastructure is primarily non-Azure
- You require standalone Layer 7 DDoS protection without Azure WAF
Best for comprehensive, flexible vulnerability scanning across diverse IT environments.
- You need accurate, up-to-date vulnerability detection with automated scanning and reporting.
- Your team values a user-friendly interface that supports both agent-based and credentialed scans.
- You require scalable vulnerability management with flexible licensing for any organization size.
- You need extensive third-party integrations beyond core vulnerability scanning capabilities.
- Your workflows demand highly customizable reporting without complex setup or cumbersome configuration.
Azure DDoS Protection: Best for Azure users needing integrated, scalable DDoS protection. Nessus: Best for comprehensive, flexible vulnerability scanning across diverse IT environments.
Description | Azure DDoS Protection is a comprehensive cloud-based service designed to safeguard Azure applications from Distributed Denial of Service (DDoS) attacks. It provides real-time monitoring, ... Read More about Azure DDoS Protection | Nessus is a vulnerability scanner of its kind, giving user a complete picture of organization's security status. Instantly scan thousands of systems for the latest vulnerabilities and react ... Read More about Nessus |
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Entry Level Pricing |
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User RatingsBased on verified Spotsaas reviews | ||
Best Company Size | 51-500 employees501-1000 employees1001+ employees | Small BusinessLarge Enterprises |
Get pricing help | Get pricing help |
Software Demo
Demo |
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How do Azure DDoS Protection and Nessus Compare on Features?
Total Features | 11 Features | 6 Features |
|---|---|---|
Unique Features | No unique features | No unique features |
Get Quote | Get Quote |
Compare Azure DDoS Protection and Nessus on pricing
Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.
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Pricing Page | Pricing information not available | ![]() |
Other Details
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Get help choosing | Get help choosing |
Security & Compliance
Certifications, data handling, and security controls for IT and compliance evaluators.
Data Residency | 🌐 Global | 🇺🇸 US |
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Azure DDoS Protection User Reviews & Rating Comparison
User Ratings | No reviews available for the product | |
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Rating Distribution | No reviews available for this product | |
Spotsaas Editor’s POV generated by AI | Buyer sentiment Users appreciate Azure DDoS Protection for its seamless Azure integration and effective automatic mitigation, though some note the need for better Layer 7 capabilities. What buyers like
Common complaints
| Buyer sentiment Overall positive sentiment highlights Nessus’s strong vulnerability detection and user-friendly interface, tempered by occasional scan inconsistencies and limited marketplace options. What buyers like
Common complaints
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Pros and Cons |
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Positive Reviews | No reviews available for the product | No reviews available for the product |
List of Customers
Customers | No Customers information available. | ![]() VMware ![]() DocuSign ![]() American Eagle Outfitters |
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Media and Screenshots
Screenshots | No screenshots available. | ![]() 5 Screenshots |
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Videos | ![]() 2 Videos | ![]() 3 Videos |
Top Alternatives to Azure DDoS Protection and Nessus in 2026
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Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].
Frequently asked questions
- Which is better, Azure DDoS Protection or Nessus?
- Nessus edges out the other on user ratings (4.3 vs -1.0). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
- Do Azure DDoS Protection and Nessus offer a free trial?
- Nessus offers a free trial. Azure DDoS Protection does not.
- What is the starting price of Azure DDoS Protection vs Nessus?
- Azure DDoS Protection starts at Contact for pricing. Nessus starts at $2,790 /Year.
- What are the top alternatives to Azure DDoS Protection?
- Top alternatives to Azure DDoS Protection include Cloudflare DDoS Protection, Radware Cloud DDoS, Imperva DDoS Protection, AWS Shield, Virusdie.
- What are the top alternatives to Nessus?
- Top alternatives to Nessus include Tenable.io, BeyondTrust Vulnerability Management, Qualys VM, Microsoft Threat Vulnerability Management, Flexera Software Vulnerability Management.


















