🔒 HTTP Headers Checker
Check HTTP security headers on any website. Identify missing security headers and get recommendations to improve your website's security posture.
🛡️ About Security Headers
HTTP security headers are directives used by web applications to configure security defenses in web browsers. They help protect against common attacks like XSS, clickjacking, and other code injection attacks.
- CSP: Content Security Policy controls resource loading
- HSTS: Forces HTTPS connections
- X-Frame-Options: Prevents clickjacking
- X-Content-Type-Options: Prevents MIME-sniffing
- Permissions-Policy: Controls browser features
❓ Frequently Asked Questions
What are HTTP security headers?
HTTP security headers are response headers that tell browsers how to behave when handling your site's content, helping protect against common web vulnerabilities.
Why are security headers important?
Security headers add an extra layer of protection against attacks like XSS, clickjacking, code injection, and information leakage. They're easy to implement and significantly improve security.
How do I add security headers?
For Apache servers, add headers to your .htaccess file. For Nginx, add them to your server configuration. For other servers, check their documentation.
Which headers are most important?
Content-Security-Policy, Strict-Transport-Security (if using HTTPS), X-Frame-Options, and X-Content-Type-Options are considered the most critical security headers.