WAFPlanet

Azure Web Application Firewall vs Coraza Web Application Firewall

Azure Web Application Firewall and Coraza Web Application Firewall take different approaches to web application security. Consider your team's expertise and infrastructure preferences when evaluating these options.

View Azure Web Application Firewall Review View Coraza Web Application Firewall Review

Azure Web Application Firewall and Coraza 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

Azure Web Application Firewall and Coraza 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.

Microsoft's cloud-native WAF integrated with Azure Application Gateway and Front Door, offering enterprise-grade protection with deep Azure ecosystem integration.

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.

Quick Comparison

Feature Azure Web Application Firewall Coraza Web Application Firewall
Overall Rating 4.2/5 4.2/5
Free Tier No Yes
Pricing Model Pay-per-use (gateway hours + data processed) Free and open source (Apache 2.0)
Ease of Use 3.5/5 3.8/5
Value for Money 3.8/5 4.8/5
Support 4.2/5 3.5/5
Open Source No Yes
Platforms Azure Application Gateway, Azure Front Door, Azure CDN, Azure Spring Apps Any platform running Go, Docker, Kubernetes, Linux, macOS, Windows
Compliance SOC 1/2/3, PCI DSS, HIPAA, FedRAMP High, ISO 27001, ISO 27018 Supports PCI DSS compliance when configured with OWASP CRS

Pricing Comparison

Azure Web Application Firewall

Model: Pay-per-use (gateway hours + data processed)

Application Gateway WAF v2

~$0.443/hour + $0.008/GB

Front Door Standard

$35/month base + usage

Front Door Premium

$330/month base + usage

View full pricing →

Coraza Web Application Firewall

Model: Free and open source (Apache 2.0)

Free Tier Available

Open Source

Free

View full pricing →

Features Comparison

Azure Web Application Firewall

  • OWASP Core Rule Set

    Pre-configured protection against OWASP Top 10 vulnerabilities with regularly updated rule sets.

  • Custom Rules

    Create custom rules based on geo-location, IP address, request attributes, and rate limiting.

  • Bot Protection

    Managed bot protection ruleset to detect and mitigate malicious bot traffic (Premium tier).

  • Per-Site Policies

    Apply different WAF policies to different sites behind the same gateway.

  • Exclusion Lists

    Fine-tune rules by excluding specific request attributes to reduce false positives.

  • Geo-Filtering

    Allow or block traffic based on country/region of origin.

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.

Which One Is Right for You?

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

Azure Web Application Firewall

  • You need: Azure-native applications, Microsoft enterprise customers, government and regulated industries, global applications needing edge protection
  • You're using: Azure Application Gateway, Azure Front Door, Azure CDN, Azure Spring Apps
Learn more →

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
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: Azure Web Application Firewall or Coraza Web Application Firewall?

Coraza Web Application Firewall offers a free tier while Azure Web Application Firewall does not, making Coraza Web Application Firewall more accessible for budget-conscious 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: Azure Web Application Firewall or Coraza Web Application Firewall?

Azure Web Application Firewall has a higher support rating (4.2/5) compared to Coraza Web Application Firewall (3.5/5). 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: Azure Web Application Firewall or Coraza Web Application Firewall?

Coraza Web Application Firewall scores higher for ease of use (3.8/5) versus Azure Web Application Firewall (3.5/5). The actual implementation effort depends on your existing infrastructure and team expertise.

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

Coraza Web Application Firewall offers a free tier while Azure Web Application Firewall requires a paid plan. Coraza Web Application Firewall scores higher for value (4.8/5). Total cost depends on your traffic volume, required features, and support level needs.

Which is better for enterprise: Azure Web Application Firewall or Coraza Web Application Firewall?

Azure Web Application Firewall is positioned for enterprise use cases, while Coraza Web Application Firewall may be more suited for small to mid-market organizations. Enterprise buyers should evaluate SLAs, support options, and integration capabilities.