Free WAF Checker & Web Application Firewall Detection Tool

Detect Web Application Firewall (WAF) presence through passive analysis of HTTP headers and server responses.

Identify WAF/CDN providers and verify security headers that indicate WAF protection.

  • WAF presence detection via headers
  • CDN and edge security identification
  • Security headers analysis
No credit card requiredNon-intrusive, passive scanningNo setup required

"The ROI has been exceptional. We've prevented three potential security incidents in the first quarter alone, and the platform pays for itself in risk mitigation."

Elena Rodriguez

VP of Engineering

"We identified and fixed critical vulnerabilities before our platform launch, saving us from potential data breaches."

Marcus Anderson

CTO

"Implementation was seamless and continuous monitoring gives our team confidence. We've seen a 40% reduction in security incidents since adopting Barrion."

David Kim

Chief Security Officer

"The automated scanning and detailed reporting have transformed our security posture. We've reduced our vulnerability remediation time from weeks to days."

Priya Sharma

Security Director

"Barrion's passive scanning approach means zero impact on our production systems while providing security insights. Perfect for our high-traffic environment."

Robert Taylor

DevOps Lead

"The reporting feature saved us weeks of manual work during our SOC 2 audit. The automated report generation is a game-changer."

Michael Brown

Compliance Officer

"Barrion's security scanning has helped us implement best security practices efficiently, saving us countless hours."

Sarah Chen

Head of Security

"Barrion gives us peace of mind, knowing we're notified of any security issues. Exactly what our team needed."

Oskar Nilsson

Tech Lead

"The detailed vulnerability reports and remediation guidance have been invaluable. Our development team can now address issues proactively rather than reactively."

Amanda Foster

Engineering Manager

"Barrion's real-time alerts have helped us catch and fix vulnerabilities before they become critical issues. The peace of mind is worth every penny."

Jennifer Martinez

Security Architect

"We needed a solution that could scale with our growing infrastructure. Barrion has exceeded expectations and become an essential part of our security toolkit."

Lisa Wang

Infrastructure Director

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Trusted Worldwide
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How it works

Scan in three simple steps

Fast, safe, non-intrusive checks with actionable results.

1

Start scan

Enter your URL, and click the start scan button to begin.

2

Scan runs

Barrion performs passive, read-only security checks with minimal site impact.

3

Take Action

Fix issues with step-by-step guidance and enable monitoring for continuous protection.

What this WAF checker detects

WAF Presence Detection:
  • WAF/CDN identification via Server headers (Cloudflare, AWS CloudFront, Akamai, etc.)
  • WAF-specific headers (X-WAF, X-Protected-By, CF-Ray, etc.)
  • CDN and edge security provider identification
  • Header-based WAF vendor detection
Security Headers Analysis:
  • Security headers that may indicate WAF presence
  • Custom security headers
  • Header configuration analysis
Limitations:
  • This tool uses passive header analysis only
  • Cannot detect WAF rules, rate limiting, or bot protection mechanisms
  • Cannot test challenge pages or active protection features
  • WAF presence detection depends on headers being exposed

Why WAF checking matters

Verifying your WAF configuration helps ensure your website is properly protected. This tool helps you:

  • Verify WAF presence: Confirm WAF/CDN is detected and active
  • Identify WAF provider: Determine which WAF or CDN service is protecting your site
  • Check security headers: Review security headers that may indicate WAF protection
  • Compliance validation: Verify WAF presence for compliance requirements

Use this WAF checker to verify WAF presence through passive header analysis. For detailed WAF configuration, rule testing, and active protection verification, use your WAF management console or professional security testing.

What to do with WAF check results

After checking your WAF protection, use the results to improve your security:

  • Verify WAF presence: If WAF is detected, confirm it's properly configured in your WAF management console
  • Check WAF configuration: Review WAF rules and settings in your WAF platform (Cloudflare, AWS WAF, etc.)
  • Review security headers: Ensure security headers are properly configured
  • If no WAF detected: Consider implementing a WAF solution if your site handles sensitive data

Note: This tool only detects WAF presence through headers. For detailed WAF rule configuration, rate limiting, bot protection, and active security testing, use your WAF management console or professional security assessments.

Tool-specific questions

What is a Web Application Firewall (WAF)?

A WAF is a security solution that filters, monitors, and blocks HTTP/HTTPS traffic to and from web applications. It protects against common attacks like SQL injection, XSS, and DDoS. WAFs can be cloud-based (like Cloudflare, AWS WAF) or on-premise solutions.

How does this tool detect WAF protection?

Our WAF checker uses passive analysis of HTTP headers to identify WAF presence. We analyze Server headers, WAF-specific headers (X-WAF, X-Protected-By, CF-Ray for Cloudflare), and other header indicators that reveal WAF or CDN providers. We do not perform active testing, trigger challenge pages, or test rate limiting.

What's the difference between a WAF and a regular firewall?

A regular firewall filters network traffic at the network layer, while a WAF operates at the application layer (HTTP/HTTPS). WAFs understand web application protocols and can detect and block application-specific attacks like SQL injection and XSS, while regular firewalls focus on network-level threats.

Do I need a WAF if I have other security controls?

WAFs provide an additional layer of defense and are recommended for production websites. They complement other security controls like security headers, TLS configuration, and secure coding practices. WAFs are especially valuable for protecting against automated attacks and zero-day vulnerabilities.

What are challenge pages and why do WAFs use them?

Challenge pages (like CAPTCHA or JavaScript challenges) are used by WAFs to verify that requests come from real browsers rather than bots. However, our tool uses passive header analysis and cannot detect challenge pages, as they would require active testing to trigger. To verify challenge page functionality, test your WAF directly or review WAF logs.

How do I know if my WAF is working correctly?

Use our WAF checker to verify WAF presence through header analysis. For detailed WAF configuration and rule effectiveness, review WAF logs in your WAF management console, monitor false positive rates, and test your WAF with known attack patterns. Our tool only detects WAF presence, not rule configuration or effectiveness.

What should I do if no WAF is detected?

If no WAF is detected, consider implementing a WAF solution. Cloud-based WAFs like Cloudflare, AWS WAF, or Akamai are easy to deploy. Alternatively, implement on-premise WAF solutions. Our tool helps identify when WAF protection is missing.

Can this tool help with WAF configuration?

Our tool detects WAF presence and configuration indicators, but detailed WAF rule configuration requires access to your WAF management console. Use our tool to verify WAF is active, then configure rules in your WAF platform based on your specific security needs.

Is WAF protection required for compliance?

Many compliance frameworks (PCI DSS, SOC 2, ISO 27001) recommend or require WAF protection for web applications handling sensitive data. Our tool helps verify WAF presence for compliance audits and security assessments.

Why Choose Barrion?

Real-Time Results

Instant security analysis with detailed reports, giving you an immediate security overview

Comprehensive Checks

Multiple best-practice security checks in a single scan, for broad coverage

Actionable and Effective

Clear recommendations for fixes, helping you improve your security quickly and effectively

General questions

Frequently Asked Questions

Find answers to common questions about Barrion.
If you have any other questions, feel free to reach out!

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