Security Headers Checker

Enter a website URL to check if it implements essential security headers.

This operation requires a server-side request to fetch the headers of the requested URL.

Don't worry – we never store or log your data. All requests are handled in real time.

How to Use the Security Headers Checker

Enter a valid website URL
Click the Check button
See which headers are present (green) and which are missing (red)
Review warnings for weak configurations
Check raw headers for debugging

💡 Pro Tip: Always include headers like Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options for better web security.

What is a Security Headers Checker?

A Security Headers Checker is a tool that analyzes the HTTP response headers of a website to assess its security posture. It checks for the presence and proper configuration of security-related headers, which are crucial for protecting a website and its users from common attacks like cross-site scripting (XSS) and clickjacking.

Why Use Our Security Headers Checker?

Identify Vulnerabilities: To quickly see if your website is missing important security headers, which could leave it vulnerable to attacks.
Improve Security: To get recommendations on which headers to implement to enhance your website's security.
Compliance: To help ensure that your website meets security standards and best practices.
Peace of Mind: To verify that your security headers are correctly implemented and providing the intended protection.

🚀 Explore More Free Developer Tools

Don’t stop here! Supercharge your workflow with our other powerful converters & formatters.

🚀 HTTP Header Checker

Analyze HTTP headers for a URL

🚀 SSL Certificate Checker

Validate and inspect SSL certificates

✅ JWT Validator

Validate JSON Web Tokens

💡 New tools are added regularly — bookmark DevUtilsX and stay ahead!

Want to support my work?

Buy me a coffee