Shield

Security Headers Analyzer

Comprehensive security headers analysis with compliance checking, recommendations, and scoring for web application security hardening

Sample Headers

Security Standards

OWASP: Open Web Application Security Project guidelines

NIST: National Institute of Standards and Technology

CSP: Content Security Policy best practices

Input Format

• Paste response headers from browser dev tools

• Format: "Header-Name: value"

• One header per line

• Comments start with #

HTTP Response Headers

Upload

Syntax: http

0 / 10000

Output

Error

Please provide headers to analyze or a URL to check

How It Works

Input Your Data

Paste, type, or upload your data directly into the security headers analyzer. All processing happens locally in your browser for complete privacy and security.

Configure Options

Customize the tool settings to match your specific needs. Real-time processing with instant validation and error detection.

Process Instantly

Click the process button or enable auto-processing for real-time results. Lightning-fast performance with immediate feedback and validation.

Export Results

Copy results to clipboard, download as files, or share with others. Multiple export formats available for maximum compatibility.

Frequently Asked Questions

Which security headers are most critical to implement?

The most critical headers are Strict-Transport-Security (HSTS), Content-Security-Policy (CSP), and X-Frame-Options. These prevent major attack vectors like man-in-the-middle attacks, XSS, and clickjacking.

How do I implement these headers in my web server?

Headers can be set at multiple levels: web server (nginx, Apache), application framework (Express.js, Django), or CDN/proxy (CloudFlare, AWS). The tool provides specific examples for each header.

What is a good security score to aim for?

Aim for a score of 85+ (Grade A-) for production applications. Critical applications should target 90+ (Grade A+). The score considers both header presence and proper configuration.

How often should I review security headers?

Review security headers quarterly or after major application changes. Subscribe to security bulletins for new header recommendations and browser updates that might affect your configuration.

Can security headers break my application?

Yes, particularly CSP and frame-related headers. Always test in a development environment first. Start with CSP in report-only mode to identify issues before enforcing.

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