Fastly Next-Gen WAF (Signal Sciences) vs Modshield SB
Both Fastly Next-Gen WAF (Signal Sciences) and Modshield SB are capable WAF solutions. The right choice depends on your specific infrastructure, budget, and feature requirements.
Overview
Fastly Next-Gen WAF (Signal Sciences) and Modshield SB are both popular web application firewall solutions. This comparison will help you understand the key differences and choose the right one for your needs.
Developer-friendly WAF using proprietary SmartParse technology, offering low false positives and seamless DevOps integration for modern application security.
ModSecurity-based web application firewall with an intuitive management UI, offering IP reputation filtering, geo-blocking, SIEM integration, and built-in load balancing in a self-hosted virtual appliance.
Quick Comparison
| Feature | Fastly Next-Gen WAF (Signal Sciences) | Modshield SB |
|---|---|---|
| Overall Rating | 4.5/5 | 3.5/5 |
| Free Tier | No | No |
| Pricing Model | Custom pricing based on requests and features | Subscription-based, per appliance |
| Ease of Use | 4.0/5 | 3.8/5 |
| Value for Money | 3.8/5 | 3.5/5 |
| Support | 4.5/5 | 3.3/5 |
| Platforms | Any web application, AWS, GCP, Azure, Kubernetes, Docker, Serverless, Nginx, Apache | Any web application (deployed as reverse proxy VM) |
| Compliance | SOC 2 Type II, PCI DSS, ISO 27001, HIPAA, GDPR | OWASP Top 10 coverage, PCI DSS support |
Pricing Comparison
Fastly Next-Gen WAF (Signal Sciences)
Model: Custom pricing based on requests and features
Essential
Custom pricing
Professional
Custom pricing
Premier
Custom pricing
Modshield SB
Model: Subscription-based, per appliance
Standard
Contact for pricing
Enterprise
Contact for pricing
Features Comparison
Fastly Next-Gen WAF (Signal Sciences)
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SmartParse Technology
Intelligent parsing technology that understands application context to reduce false positives by 90%+.
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Power Rules
Flexible rule language for creating custom detection and response logic based on any request attribute.
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API Discovery
Automatic discovery and cataloging of API endpoints with security assessment.
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DevOps Integration
Native integrations with CI/CD tools, infrastructure as code support, and developer-friendly APIs.
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Multi-Environment Deployment
Deploy as cloud service, agent, or edge module across diverse infrastructure.
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Real-Time Dashboards
Live visibility into attacks, decisions, and application health without sampling.
Modshield SB
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ModSecurity Engine
Built on the proven ModSecurity WAF engine with full OWASP Core Rule Set compatibility.
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IP Reputation Filtering
Automatically block traffic from known malicious IP addresses using continuously updated threat intelligence feeds.
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Geo-Blocking
Country-level blacklisting and whitelisting to restrict access based on geographic origin.
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SIEM Integration
Forward security logs to external SIEM systems like Splunk and Elasticsearch for centralized monitoring.
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Built-in Load Balancer
Integrated load balancing distributes traffic across multiple backend servers without additional infrastructure.
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Compliance Metrics
Built-in compliance reporting and dashboards to help meet regulatory requirements.
Which One Is Right for You?
The best WAF depends on your specific requirements, infrastructure, and team expertise.
Fastly Next-Gen WAF (Signal Sciences)
- You need: Modern DevOps teams, API-heavy applications, organizations frustrated with false positives, companies needing flexible deployment options
- You're using: Any web application, AWS, GCP, Azure, Kubernetes, Docker, Serverless, Nginx, Apache
Modshield SB
- You need: Organizations wanting managed ModSecurity with a GUI, self-hosted WAF requirements, compliance-focused deployments
- You're using: Any web application (deployed as reverse proxy VM)
We recommend evaluating both options with a trial or free tier before committing. Consider your existing infrastructure, team expertise, compliance requirements, and budget.
Frequently Asked Questions
Which has better support: Fastly Next-Gen WAF (Signal Sciences) or Modshield SB?
Fastly Next-Gen WAF (Signal Sciences) has a higher support rating (4.5/5) compared to Modshield SB (3.3/5). However, support quality can vary based on your plan tier - enterprise customers typically receive more responsive support from both providers. Consider evaluating support during a trial period.
Which is easier to implement: Fastly Next-Gen WAF (Signal Sciences) or Modshield SB?
Fastly Next-Gen WAF (Signal Sciences) scores higher for ease of use (4.0/5) versus Modshield SB (3.8/5). The actual implementation effort depends on your existing infrastructure and team expertise.
Which is more cost-effective: Fastly Next-Gen WAF (Signal Sciences) or Modshield SB?
Neither provider offers a completely free tier. Fastly Next-Gen WAF (Signal Sciences) scores higher for value (3.8/5). Total cost depends on your traffic volume, required features, and support level needs.
Which works better with AWS: Fastly Next-Gen WAF (Signal Sciences) or Modshield SB?
Fastly Next-Gen WAF (Signal Sciences) explicitly supports AWS while Modshield SB's AWS integration may vary. Consider whether native AWS integration or cross-cloud portability matters more for your use case.