Security Headers Checker
Analyze your website's HTTP security headers. Check for HSTS, CSP, X-Frame-Options, and other critical security configurations.
Why Security Headers Matter
HTTP security headers are your first line of defense against common web attacks. They instruct browsers how to handle your content and protect users from threats like XSS, clickjacking, and data injection attacks.
HSTS (Strict-Transport-Security)
Forces browsers to only connect via HTTPS, preventing protocol downgrade attacks and cookie hijacking. Essential for any site handling sensitive data.
Content-Security-Policy (CSP)
Controls which resources (scripts, styles, images) can be loaded on your page. Prevents XSS attacks by blocking unauthorized code execution.
X-Frame-Options
Prevents your site from being embedded in iframes on other domains, protecting against clickjacking attacks where attackers trick users into clicking hidden elements.
X-Content-Type-Options
Prevents browsers from MIME-sniffing responses, ensuring content is treated exactly as declared. Stops attacks that exploit browser content interpretation.
Referrer-Policy
Controls how much referrer information is included when navigating away from your site. Protects user privacy and prevents sensitive URL data leakage.
Permissions-Policy
Restricts which browser features (camera, microphone, geolocation) can be used on your site. Reduces attack surface and protects user privacy.
Grade Breakdown:
- A (85-100) - Excellent security
- B (70-84) - Good, minor gaps
- C (50-69) - Fair, needs improvement
- D (30-49) - Poor security posture
- F (0-29) - Critical vulnerabilities
Need Help Securing Your Website?
Our team can help configure your security headers and implement best practices to protect your website and users. Book a free discovery call to discuss your needs.