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🛡️ Security Headers Checker

Enter a URL to inspect its HTTP security headers and get a graded report.

Include https:// or http://

How to use this tool

  1. 1 Enter the URL of the website you want to check.
  2. 2 Click Analyze Headers.
  3. 3 The tool makes a request and displays all HTTP response headers returned by the server.
  4. 4 Check for missing security headers and review the recommendations.

Frequently asked questions

What are HTTP security headers?
They are server response headers that instruct browsers to apply security policies. Examples include Strict-Transport-Security, X-Frame-Options, and Content-Security-Policy.
Which headers are most important?
Strict-Transport-Security enforces HTTPS. Content-Security-Policy blocks XSS attacks. X-Content-Type-Options prevents MIME sniffing. X-Frame-Options prevents clickjacking.
How do I add security headers to my site?
The method depends on your server. On Nginx, add header directives to your server block. On Apache, use Header directives in your config or .htaccess file.
Does having all headers guarantee my site is secure?
No. Headers are one layer of defense. You also need secure code, up-to-date dependencies, proper authentication, and regular security testing.

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