HTTP Headers Checker

Analyze website security headers, check HSTS configuration & get security ratings instantly

Security Analysis Instant Results All Headers 100% Free
Enter the full URL including https:// or http://
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Analyzing headers...

Security Rating: -

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How to Use the HTTP Headers Checker

Analyze your website's security configuration with these simple steps:

  1. Enter URL - Type your website's address (e.g., https://example.com) into the input field.
  2. Check - Click "Check Headers" to initiate the scan.
  3. Review Analysis - Switch between security ratings and the raw headers list.
  4. Optimize - Use our recommendations to implement missing security headers like HSTS or CSP.
Tip: Aim for an 'A' rating by implementing all recommended security headers to protect your users from common web attacks.

Common Use Cases

Who benefits from header analysis?

Security Audits

Quickly verify if your production environment has the necessary security controls enabled.

Development

Debug header configurations during development to ensure correct behavior before deployment.

Learning

Understand how different servers and frameworks handle HTTP responses and security policies.

Troubleshooting

Diagnose caching issues, redirect loops, or missing content types by inspecting raw headers.

Frequently Asked Questions

HTTP security headers are response headers that your server sends to the browser to enable browser-side security features. They can protect against XSS, clickjacking, and other attacks.

It helps identify missing security controls and misconfigurations. Regular checks ensure your site remains protected against evolving web threats.

Review the "Security Analysis" tab for specific recommendations. You'll typically need to add directives to your server config (e.g., Nginx, Apache) or application code to send headers like HSTS or X-Frame-Options.

Yes, this HTTP Headers Checker is 100% free to use for as many checks as you need.

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About HTTP Headers Checker

A vital tool for securing the modern web.

Our HTTP Headers Checker empowers developers and site owners to instantly verify their security configuration. By analyzing response headers, we help you identify vulnerabilities and implement best-practice protections like HSTS, CSP, and X-Frame-Options, ensuring a safer browsing experience for your users.