DataDome vs Fastly Next-Gen WAF (Signal Sciences)
Both DataDome and Fastly Next-Gen WAF (Signal Sciences) are capable WAF solutions. The right choice depends on your specific infrastructure, budget, and feature requirements.
Overview
DataDome and Fastly Next-Gen WAF (Signal Sciences) are both popular web application firewall solutions. This comparison will help you understand the key differences and choose the right one for your needs.
AI-powered bot and fraud protection platform that stops advanced bots, credential stuffing, scraping, and L7 DDoS attacks across websites, mobile apps, and APIs. Forrester Leader in Bot Management with 99.99% detection accuracy and sub-2ms latency. Starts at $3,830/month.
Developer-friendly WAF using proprietary SmartParse technology, offering low false positives and seamless DevOps integration for modern application security.
Quick Comparison
| Feature | DataDome | Fastly Next-Gen WAF (Signal Sciences) |
|---|---|---|
| Overall Rating | 4.2/5 | 4.5/5 |
| Free Tier | No | No |
| Pricing Model | Tiered (by request volume per month) | Custom pricing based on requests and features |
| Ease of Use | 4.5/5 | 4.0/5 |
| Value for Money | 3.0/5 | 3.8/5 |
| Support | 4.5/5 | 4.5/5 |
| Platforms | CDN (Cloudflare, Akamai, Fastly, AWS CloudFront, Imperva, StackPath), web servers (NGINX, Apache, IIS), cloud (AWS, Azure, GCP), frameworks (Node.js, PHP, Python, Java, .NET, Go, Ruby), mobile (iOS, Android SDK) | Any web application, AWS, GCP, Azure, Kubernetes, Docker, Serverless, Nginx, Apache |
| Compliance | SOC 2 Type II, GDPR compliant, ISO 27001 | SOC 2 Type II, PCI DSS, ISO 27001, HIPAA, GDPR |
Pricing Comparison
DataDome
Model: Tiered (by request volume per month)
Essentials
$3,830/mo
Advanced
$8,670/mo
Premium
$10,160/mo
Enterprise
From $13,270/mo
Fastly Next-Gen WAF (Signal Sciences)
Model: Custom pricing based on requests and features
Essential
Custom pricing
Professional
Custom pricing
Premier
Custom pricing
Features Comparison
DataDome
-
Multi-Layered AI Detection
Combines client-side and server-side signal analysis across thousands of AI models to detect bot intent in real time. Processes both browser fingerprinting and behavioral signals for 99.99% detection accuracy.
-
Agent Trust Management
Identifies and classifies AI agent traffic including LLM crawlers, agentic AI, and MCP clients. Set per-agent policies to allow, block, challenge, or monetize AI traffic across all protected endpoints.
-
Account Protect
Prevents account takeover (ATO), credential stuffing, and fake account creation by analyzing login and registration flows for automated behavior. Customers report 99% reduction in ATO fraud.
-
L7 DDoS Protection
Detects and blocks application-layer DDoS attacks that bypass CDN-level protection. Real-time detection with auto-scaling to 200x average traffic in under one minute.
-
AI Crawler Monetization
Grants controlled access to trusted AI crawlers while blocking unauthorized scrapers. Create rules, define partnerships, and manage AI access to turn crawler traffic into a revenue stream.
-
MCP Server Protection
Secures Model Context Protocol (MCP) servers from agentic threats. Real-time detection and automated blocking protects AI infrastructure while allowing trusted agent interactions.
-
Real-Time Dashboard
Award-winning interface providing instant visibility into threat landscape, traffic composition (human vs bot vs AI), actions taken, and automated reporting. Drill into individual threats and sessions.
-
Vulnerability Scanner
Free tool to assess domain defenses and uncover subdomains exposed to malicious bots and untrusted AI agents. Available without purchase at datadome.co.
-
DataDome Intel
Publicly accessible threat intelligence database powered by 5 trillion daily signals. Covers bots, crawlers, AI agents, CAPTCHA solvers, headless browsers, anti-detect tools, and web unblockers.
Fastly Next-Gen WAF (Signal Sciences)
-
SmartParse Technology
Intelligent parsing technology that understands application context to reduce false positives by 90%+.
-
Power Rules
Flexible rule language for creating custom detection and response logic based on any request attribute.
-
API Discovery
Automatic discovery and cataloging of API endpoints with security assessment.
-
DevOps Integration
Native integrations with CI/CD tools, infrastructure as code support, and developer-friendly APIs.
-
Multi-Environment Deployment
Deploy as cloud service, agent, or edge module across diverse infrastructure.
-
Real-Time Dashboards
Live visibility into attacks, decisions, and application health without sampling.
Which One Is Right for You?
The best WAF depends on your specific requirements, infrastructure, and team expertise.
DataDome
- You need: E-commerce platforms dealing with scraping, inventory hoarding, and account fraud. High-traffic APIs facing credential stuffing and automated abuse. Organizations needing to manage LLM crawler and AI agent traffic. Enterprises already running a WAF that need additional bot and fraud protection.
- You're using: CDN (Cloudflare, Akamai, Fastly, AWS CloudFront, Imperva, StackPath), web servers (NGINX, Apache, IIS), cloud (AWS, Azure, GCP), frameworks (Node.js, PHP, Python, Java, .NET, Go, Ruby), mobile (iOS, Android SDK)
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
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: DataDome or Fastly Next-Gen WAF (Signal Sciences)?
Fastly Next-Gen WAF (Signal Sciences) has a higher support rating (4.5/5) compared to DataDome (4.5/5). 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: DataDome or Fastly Next-Gen WAF (Signal Sciences)?
DataDome scores higher for ease of use (4.5/5) versus Fastly Next-Gen WAF (Signal Sciences) (4.0/5). The actual implementation effort depends on your existing infrastructure and team expertise.
Which is more cost-effective: DataDome or Fastly Next-Gen WAF (Signal Sciences)?
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: DataDome or Fastly Next-Gen WAF (Signal Sciences)?
Both DataDome and Fastly Next-Gen WAF (Signal Sciences) support AWS deployments. Consider whether native AWS integration or cross-cloud portability matters more for your use case.
Which is better for WordPress: DataDome or Fastly Next-Gen WAF (Signal Sciences)?
DataDome explicitly supports WordPress while Fastly Next-Gen WAF (Signal Sciences) takes a more platform-agnostic approach. For WordPress-specific threats like plugin vulnerabilities and brute force attacks, look for providers with WordPress-specific rule sets.