---
title: "Security Headers Scanner - Free Online Checker & Grade"
description: "Free security headers scanner. Grade any site's HTTP headers and cookie flags, then get prioritized fixes for CSP, HSTS, X-Frame-Options and more. No signup."
url: "https://next.centralcsp.com/en/tools/security-headers/"
lang: "en"
---

### Security Headers Scanner

Audit a site's HTTP security headers and cookies, with a hardening score and prioritized fixes.

 Follow redirects

Scan security headers

Enter a URL and we fetch its response headers to audit its security posture.

---

Available in: [en](https://next.centralcsp.com/en/tools/security-headers/), [fr](https://next.centralcsp.com/fr/tools/security-headers/)