Fastly Next-Gen WAF (Signal Sciences) vs StackPath Web Application Firewall
Both Fastly Next-Gen WAF (Signal Sciences) and StackPath Web Application Firewall are capable WAF solutions. The right choice depends on your specific infrastructure, budget, and feature requirements.
Overview
Fastly Next-Gen WAF (Signal Sciences) and StackPath Web Application Firewall 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.
Edge-based WAF that was part of StackPath's CDN and edge computing platform. Discontinued in June 2024 when the company shut down operations.
Quick Comparison
| Feature | Fastly Next-Gen WAF (Signal Sciences) | StackPath Web Application Firewall |
|---|---|---|
| Overall Rating | 4.5/5 | 1.0/5 |
| Free Tier | No | No |
| Pricing Model | Custom pricing based on requests and features | Per site / Per bandwidth tier (discontinued) |
| Ease of Use | 4.0/5 | 1.0/5 |
| Value for Money | 3.8/5 | 1.0/5 |
| Support | 4.5/5 | 1.0/5 |
| Platforms | Any web application, AWS, GCP, Azure, Kubernetes, Docker, Serverless, Nginx, Apache | Cloud (SaaS, discontinued) |
| Compliance | SOC 2 Type II, PCI DSS, ISO 27001, HIPAA, GDPR | SOC 2, PCI DSS (historical) |
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
StackPath Web Application Firewall
Model: Per site / Per bandwidth tier (discontinued)
Edge Delivery 200
$27.50/month
Edge Delivery 2000
$275/month
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.
StackPath Web Application Firewall
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Edge WAF
Application-layer firewall deployed at the edge, filtering traffic before it reached origin servers. Included OWASP Top 10 coverage and custom rule support.
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DDoS Protection
Volumetric and application-layer DDoS mitigation integrated with the CDN edge network.
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Bot Management
Bot detection and mitigation using behavioral analysis and challenge-based verification.
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Real-time Analytics
Dashboard showing traffic patterns, blocked requests, and attack trends across protected sites.
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
StackPath Web Application Firewall
- You need: Historical reference only. StackPath is no longer available.
- You're using: Cloud (SaaS, discontinued)
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 StackPath Web Application Firewall?
Fastly Next-Gen WAF (Signal Sciences) has a higher support rating (4.5/5) compared to StackPath Web Application Firewall (1.0/5). 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 StackPath Web Application Firewall?
Fastly Next-Gen WAF (Signal Sciences) scores higher for ease of use (4.0/5) versus StackPath Web Application Firewall (1.0/5). The actual implementation effort depends on your existing infrastructure and team expertise.
Which is more cost-effective: Fastly Next-Gen WAF (Signal Sciences) or StackPath Web Application Firewall?
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 StackPath Web Application Firewall?
Fastly Next-Gen WAF (Signal Sciences) explicitly supports AWS while StackPath Web Application Firewall's AWS integration may vary. Consider whether native AWS integration or cross-cloud portability matters more for your use case.