Coraza Web Application Firewall vs Tempesta FW

Both Coraza Web Application Firewall and Tempesta FW are capable WAF solutions. The right choice depends on your specific infrastructure, budget, and feature requirements.

View Coraza Web Application Firewall Review View Tempesta FW Review

Overview

Coraza Web Application Firewall and Tempesta FW are both popular web application firewall solutions. This comparison will help you understand the key differences and choose the right one for your needs.

OWASP open source WAF written in Go, fully compatible with ModSecurity rules and OWASP Core Rule Set, designed as a modern alternative to ModSecurity with native support for Caddy, Traefik, and HAProxy.

High-performance open-source WAF and web accelerator built directly into the Linux kernel, delivering up to 1.8M requests per second with integrated L3-L7 DDoS protection and automated bot mitigation via WebShield.

Quick Comparison

Feature	Coraza Web Application Firewall	Tempesta FW
Overall Rating	4.2/5	4.0/5
Free Tier	Yes	Yes
Pricing Model	Free and open source (Apache 2.0)	Free (open source) + professional services
Ease of Use	3.8/5	2.5/5
Value for Money	4.8/5	4.8/5
Support	3.5/5	3.0/5
Open Source	Yes	Yes
Platforms	Any platform running Go, Docker, Kubernetes, Linux, macOS, Windows	Linux (kernel-level integration), bare metal, cloud VMs
Compliance	Supports PCI DSS compliance when configured with OWASP CRS	Contact vendor

Pricing Comparison

Coraza Web Application Firewall

Model: Free and open source (Apache 2.0)

Free Tier Available

Open Source

Free

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Tempesta FW

Model: Free (open source) + professional services

Free Tier Available

Open Source

Free

Professional Services

Contact for pricing

View full pricing →

Features Comparison

Coraza Web Application Firewall

ModSecurity Compatibility
Full compatibility with ModSecurity SecLang rule language. Existing ModSecurity rules and rule sets work without modification.
OWASP CRS Support
Native support for the OWASP Core Rule Set, providing protection against SQL injection, XSS, RCE, and other OWASP Top 10 threats.
Go Native
Pure Go implementation with no C dependencies. Embeddable as a library, usable as middleware, or deployable as a plugin for modern proxies.
Proxy Plugins
Official plugins for Caddy (coraza-caddy), Traefik, and HAProxy allow adding WAF protection with minimal configuration.
Kubernetes Ready
Lightweight enough to run as a sidecar or embedded in ingress controllers. Works with any Go-based K8s tooling.
Audit Logging
Detailed audit logging of blocked and flagged requests for security analysis and compliance reporting.

Tempesta FW

Kernel-Level Performance
Built directly into Linux TCP/IP stack, processing up to 1.8M HTTP requests per second - 3x faster than Nginx or HAProxy.
Multi-Layer DDoS Protection
Integrated protection against volumetric and application-layer DDoS attacks with rate limiting, JavaScript challenges, and adaptive QoS.
HTTP Tables
Extends Linux iptables/nftables for application-layer filtering, enabling rules that combine IP addresses with HTTP headers and content.
Intelligent Load Balancing
Machine learning-powered load balancing with persistent sessions, weighted round-robin, and rendezvous hashing strategies.
Web Acceleration
Built-in caching using Tempesta DB, an ultra-fast in-memory database with NUMA-aware distribution and SIMD optimizations.
High-Performance TLS
Tempesta TLS is 40-80% faster than Nginx/OpenSSL with 4x lower latency for TLS handshakes.
Bot Protection (WebShield)
Open-source automated bot protection via WebShield — detects and blocks DDoS bots, scrapers, shopping bots, and booking bots using TLS and HTTP fingerprint analysis on access logs stored in ClickHouse.
Volumetric DDoS Protection
Upcoming open-source volumetric DDoS protection solution, completing a full L3-L7 DDoS and bot mitigation stack when combined with Tempesta FW's application-layer defences and WebShield.
Native XDP Integration
Uses Linux XDP (eXpress Data Path) for early packet dropping, enabling efficient mitigation of volumetric attacks.

Which One Is Right for You?

The best WAF depends on your specific requirements, infrastructure, and team expertise.

Coraza Web Application Firewall

You need: Teams migrating from ModSecurity, Kubernetes environments, Go-based applications, organizations using Caddy or Traefik, developers wanting embeddable WAF
You want to start with a free tier
You prefer open-source solutions
You're using: Any platform running Go, Docker, Kubernetes, Linux, macOS, Windows

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Tempesta FW

You need: High-traffic sites requiring maximum performance, organizations with Linux expertise, teams wanting to replace multiple infrastructure components, performance-critical applications
You want to start with a free tier
You prefer open-source solutions
You're using: Linux (kernel-level integration), bare metal, cloud VMs

Learn more →

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: Coraza Web Application Firewall or Tempesta FW?

Both Coraza Web Application Firewall and Tempesta FW offer free tiers, making them accessible for startups. Coraza Web Application Firewall scores higher for ease of use (3.8/5), which is valuable for smaller teams. Consider your immediate security needs and growth plans when choosing.

Which has better support: Coraza Web Application Firewall or Tempesta FW?

Coraza Web Application Firewall has a higher support rating (3.5/5) compared to Tempesta FW (3.0/5). 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: Coraza Web Application Firewall or Tempesta FW?

Coraza Web Application Firewall scores higher for ease of use (3.8/5) versus Tempesta FW (2.5/5). The actual implementation effort depends on your existing infrastructure and team expertise.

Which is more cost-effective: Coraza Web Application Firewall or Tempesta FW?

Both providers offer free tiers, making it easy to start without commitment. Total cost depends on your traffic volume, required features, and support level needs.