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Audit response headers + get a security grade for any URL.
We make a GET request from our server (because most sites block cross-origin browser requests). Headers and cookies are returned as-is — your URL is never logged.
Inspect any website's HTTP response headers and get a security score. Checks for HSTS, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, Cross-Origin headers and cookie flags. Surfaces missing or weak headers and explains what each does.
HTTP Headers Analyzer allows users to quickly inspect any website's HTTP response headers and receive an automated security grade. It checks essential security mechanisms such as HSTS, Content-Security-Policy, X-Frame-Options, and cookie flags without requiring any installation or signup. The tool clearly surfaces missing or weak headers while providing helpful explanations for each one.
Good to know: This tool focuses strictly on surface-level HTTP response headers and security grades, meaning it does not replace comprehensive vulnerability scanners or deep penetration testing tools.
Audit any website's HTTP response headers to identify security vulnerabilities and missing protection layers.
Enter the target website URL
Type or paste the full URL of the website you want to audit into the analyzer input field.
Initiate the header inspection process
Click the scan button to trigger the tool to fetch and analyze the server's HTTP response headers.
Review the security grade and score
Examine the generated security score which evaluates the presence and configuration of critical headers like HSTS and CSP.
Analyze missing or weak security headers
Scroll through the detailed report to identify missing headers such as X-Frame-Options, Referrer-Policy, or insecure cookie flags.
Implement recommended security improvements
Use the provided explanations for each header to update your server configuration and strengthen your website's security posture.
Estimated time: PT1M
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