Security Headers Checker

HTTP Security Headers Auditor

ℹ️ About Security Headers Checker
Enter a site URL to scan HTTP response headers and audit the site's server-side security posture.

Fetching response headers and calculating security score...

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Security Audit Summary

Security Score: -

Target URL: -

Audit Date: -

Security Audit Findings
Features

Why Check HTTP Security Headers?

Audit, verify, and improve web server security policies to block common client-side exploits.

🛡️

Vulnerability Auditing

Check if your site is protected against Clickjacking, Cross-Site Scripting (XSS), and code injection.

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Security Grade Card

Receive an instantly readable grade (from A+ to F) evaluating server security settings.

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Full Explanation

Learn what each missing header does and how to configure it correctly on your web server.

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Raw Headers Viewer

View the complete list of HTTP header parameters returned by the target host.

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Redirect Follower

Automatically follows HTTP redirects to inspect headers on final destination landing pages.

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Fast Execution

Runs header checks in a few seconds using high-performance cURL fetch queries.

FAQ

Frequently Asked Questions

Get detailed answers to security headers questions and web security standards.

HTTP security headers are response parameters sent by a web server that instruct browsers how to behave and protect user data during interaction.

CSP is a powerful security header that lists trusted sources of scripts, styles, images, and other assets, preventing hackers from executing cross-site scripting (XSS) code.

HSTS forces browsers to load your site exclusively over HTTPS, protecting against SSL-stripping and packet sniping on public networks.

You can configure your web server (Nginx/Apache) to return "X-Frame-Options: SAMEORIGIN" or "DENY" to prevent malicious framing/clickjacking.

Indirectly, yes. Search engines prioritize secure, trusted websites, and missing critical headers can lower user trust and increase risk metrics.
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