open-appsec vs StackPath Web Application Firewall
open-appsec and StackPath Web Application Firewall take different approaches to web application security. Consider your team's expertise and infrastructure preferences when evaluating these options.
open-appsec and StackPath Web Application Firewall take fundamentally different approaches to web application security. Understanding your infrastructure and team capabilities will help determine which approach fits your needs.
Overview
open-appsec 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.
Machine learning-based open source WAF that uses contextual AI to detect threats without signatures or rules, with native integration for NGINX, Kong, Envoy, and Kubernetes ingress controllers.
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 | open-appsec | StackPath Web Application Firewall |
|---|---|---|
| Overall Rating | 4.1/5 | 1.0/5 |
| Free Tier | Yes | No |
| Pricing Model | Free open source, managed cloud SaaS available | Per site / Per bandwidth tier (discontinued) |
| Ease of Use | 4.3/5 | 1.0/5 |
| Value for Money | 4.6/5 | 1.0/5 |
| Support | 3.7/5 | 1.0/5 |
| Open Source | Yes | No |
| Platforms | Docker, Kubernetes, Linux, NGINX, Kong Gateway, Envoy | Cloud (SaaS, discontinued) |
| Compliance | Supports OWASP Top 10 and API Top 10 protection | SOC 2, PCI DSS (historical) |
Pricing Comparison
open-appsec
Model: Free open source, managed cloud SaaS available
Free Tier AvailableOpen Source
Free
SaaS Management
Free tier available, paid plans for higher traffic
StackPath Web Application Firewall
Model: Per site / Per bandwidth tier (discontinued)
Edge Delivery 200
$27.50/month
Edge Delivery 2000
$275/month
Features Comparison
open-appsec
-
ML-Based Detection
Pre-trained machine learning engine detects threats based on context and intent, not signatures. No rule tuning required.
-
Automatic Learning
Continuously learns application-specific traffic patterns in production, reducing false positives over time without manual intervention.
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Native Proxy Integration
Runs as a module inside NGINX, Kong, or Envoy rather than as a separate proxy, eliminating additional network hops and latency.
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Kubernetes Ingress
Functions as a Kubernetes Ingress Controller with built-in WAF, providing security at the ingress layer without sidecars or service mesh.
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API Protection
Protects REST APIs against OWASP API Top 10 threats using the same ML engine, with automatic API discovery and schema enforcement.
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Anti-Bot
Detects and mitigates automated attacks, credential stuffing, and web scraping using behavioral analysis.
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.
open-appsec
- You need: Kubernetes environments, teams using NGINX or Kong, organizations wanting hands-off WAF protection, cloud-native applications, DevOps teams that do not want to manage WAF rules
- You want to start with a free tier
- You prefer open-source solutions
- You're using: Docker, Kubernetes, Linux, NGINX, Kong Gateway, Envoy
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 is better for startups: open-appsec or StackPath Web Application Firewall?
open-appsec offers a free tier while StackPath Web Application Firewall does not, which may be important for early-stage startups. open-appsec scores higher for ease of use (4.3/5), which is valuable for smaller teams. Consider your immediate security needs and growth plans when choosing.
Which has better support: open-appsec or StackPath Web Application Firewall?
open-appsec has a higher support rating (3.7/5) 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: open-appsec or StackPath Web Application Firewall?
open-appsec scores higher for ease of use (4.3/5) 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: open-appsec or StackPath Web Application Firewall?
open-appsec offers a free tier while StackPath Web Application Firewall requires a paid plan. open-appsec scores higher for value (4.6/5). Total cost depends on your traffic volume, required features, and support level needs.
What's the difference between open-appsec (open source) and StackPath Web Application Firewall (commercial)?
open-appsec is open source, which means you can inspect the code, customize it, and self-host without licensing fees. StackPath Web Application Firewall is a commercial solution with managed support and regular updates. Open source is ideal if you have in-house expertise and want full control. Commercial solutions are better if you prefer managed security with vendor support.