WAFPlanet

Cloudflare Web Application Firewall vs Kong Gateway WAF

Both Cloudflare Web Application Firewall and Kong Gateway WAF are capable WAF solutions. The right choice depends on your specific infrastructure, budget, and feature requirements.

View Cloudflare Web Application Firewall Review View Kong Gateway WAF Review

Overview

Cloudflare Web Application Firewall and Kong Gateway WAF are both popular web application firewall solutions. This comparison will help you understand the key differences and choose the right one for your needs.

Industry-leading WAF with global CDN integration, offering robust protection against OWASP threats with easy setup and generous free tier.

API gateway with built-in WAF plugin for enterprise customers. Kong is the most popular open source API gateway (35K+ GitHub stars, 312M+ downloads) built on NGINX, processing 400B+ API calls daily. The WAF plugin is an Enterprise-only add-on that protects API endpoints at the gateway layer.

Quick Comparison

Feature Cloudflare Web Application Firewall Kong Gateway WAF
Overall Rating 4.5/5 3.8/5
Free Tier Yes No
Pricing Model Per domain / Per feature tier Tiered (Plus per-gateway + Enterprise custom)
Ease of Use 4.8/5 3.2/5
Value for Money 4.5/5 3.0/5
Support 4.0/5 4.2/5
Platforms Any web application, WordPress, Shopify, AWS, GCP, Azure, Kubernetes Linux (Ubuntu, RHEL, Debian, Amazon Linux, Alpine), Docker, Kubernetes (via Ingress Controller and Operator), AWS, Azure, GCP, ARM64, macOS (dev)
Compliance SOC 2, PCI DSS, ISO 27001, HIPAA, FedRAMP SOC 2 Type II, FIPS 140-2 (Enterprise data planes), supports PCI DSS and HIPAA compliance

Pricing Comparison

Cloudflare Web Application Firewall

Model: Per domain / Per feature tier

Free Tier Available

Free

$0/month

Pro

$20/month

Business

$200/month

Enterprise

Contact Sales

View full pricing →

Kong Gateway WAF

Model: Tiered (Plus per-gateway + Enterprise custom)

Kong Gateway OSS

Free

Kong Konnect Plus

From $225/mo

Kong Konnect Enterprise

Custom (annual)

Dedicated Cloud Gateway

$500/mo per control plane + $0.15/GB

View full pricing →

Features Comparison

Cloudflare Web Application Firewall

  • Managed Rulesets

    Pre-configured rules from Cloudflare and OWASP that are automatically updated to protect against emerging threats.

  • Custom Rules

    Create your own firewall rules using Cloudflare's expression language to block, challenge, or allow specific traffic patterns.

  • Rate Limiting

    Protect against brute force attacks and API abuse by limiting request rates from specific IPs or patterns.

  • Bot Management

    Advanced bot detection and mitigation using machine learning to distinguish good bots from malicious ones.

  • API Shield

    Protect API endpoints with schema validation, mutual TLS, and anomaly detection.

  • Page Shield

    Monitor and control third-party JavaScript to prevent supply chain attacks and data theft.

Kong Gateway WAF

  • Gateway-Embedded WAF

    WAF runs as a plugin inside the Kong Gateway process, inspecting API traffic at the same layer where routing, authentication, and rate limiting occur. No separate WAF appliance or additional proxy hop needed.

  • OWASP Top 10 Protection

    Built-in protection against common web application attacks including SQL injection, cross-site scripting, command injection, and path traversal at the API gateway layer.

  • Plugin Ecosystem

    Over 100 plugins for security, traffic control, authentication, and observability. WAF works alongside bot detection, IP restriction, CORS, ACL, and rate limiting plugins in a configurable execution chain.

  • Third-Party WAF Integrations

    Open plugin architecture supports third-party WAF engines including open-appsec (ML-driven detection) and Wallarm (API security). Teams can choose the WAF engine that fits their threat model.

  • Kubernetes-Native Deployment

    Kong Ingress Controller and Kong Kubernetes Operator provide native Kubernetes integration. WAF policies can be managed declaratively through Kubernetes CRDs alongside gateway configuration.

  • Hybrid Mode

    Cloud-managed control plane with self-hosted data planes. WAF policies are centrally managed and distributed to data planes running in any environment, including air-gapped networks.

  • AI Gateway

    Dedicated AI gateway capabilities including LLM proxy, token-based rate limiting, semantic caching, PII sanitization, prompt guardrails, and MCP server proxy. WAF protects AI endpoints alongside traditional APIs.

  • Declarative Configuration

    Gateway and WAF configuration can be managed as code through declarative YAML/JSON, enabling GitOps workflows and CI/CD pipeline integration for security policy changes.

  • Advanced Rate Limiting

    Enterprise-grade rate limiting with sliding window counters, consumer groups, and cluster-wide synchronization. Works in conjunction with WAF to prevent both application-layer attacks and abuse.

Which One Is Right for You?

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

Cloudflare Web Application Firewall

  • You need: Small to medium websites, WordPress sites, developers wanting easy setup, organizations needing integrated CDN+WAF
  • You want to start with a free tier
  • You're using: Any web application, WordPress, Shopify, AWS, GCP, Azure, Kubernetes
Learn more →

Kong Gateway WAF

  • You need: Organizations already using Kong as their API gateway, Kubernetes-native architectures needing gateway-level WAF, teams wanting unified API management and security in one platform, enterprises with microservices architectures routing all traffic through an API gateway
  • You're using: Linux (Ubuntu, RHEL, Debian, Amazon Linux, Alpine), Docker, Kubernetes (via Ingress Controller and Operator), AWS, Azure, GCP, ARM64, macOS (dev)
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: Cloudflare Web Application Firewall or Kong Gateway WAF?

Cloudflare Web Application Firewall offers a free tier while Kong Gateway WAF does not, which may be important for early-stage startups. Cloudflare Web Application Firewall scores higher for ease of use (4.8/5), which is valuable for smaller teams. Consider your immediate security needs and growth plans when choosing.

Which has better support: Cloudflare Web Application Firewall or Kong Gateway WAF?

Kong Gateway WAF has a higher support rating (4.2/5) compared to Cloudflare Web Application Firewall (4.0/5). 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: Cloudflare Web Application Firewall or Kong Gateway WAF?

Cloudflare Web Application Firewall scores higher for ease of use (4.8/5) versus Kong Gateway WAF (3.2/5). DNS-based setup makes Cloudflare particularly quick to implement. The actual implementation effort depends on your existing infrastructure and team expertise.

Which is more cost-effective: Cloudflare Web Application Firewall or Kong Gateway WAF?

Cloudflare Web Application Firewall offers a free tier while Kong Gateway WAF requires a paid plan. Cloudflare Web Application Firewall scores higher for value (4.5/5). Total cost depends on your traffic volume, required features, and support level needs.

Which works better with AWS: Cloudflare Web Application Firewall or Kong Gateway WAF?

Both Cloudflare Web Application Firewall and Kong Gateway WAF support AWS deployments. Consider whether native AWS integration or cross-cloud portability matters more for your use case.