Security Headers Analyzer
Scan and grade your website's HTTP security headers with actionable fix instructions.
Input Analysis Data
Security Report
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Paste your server response headers to see your security grade.
Secure Your Web Infrastructure
Cybersecurity starts with the fundamentals. HTTP security headers are a critical but often overlooked component of a secure website. Our Security Headers Analyzer provides a comprehensive audit of your site's response headers, grading your configuration from A to F and providing specific code snippets to fix vulnerabilities. By implementing these industry-standard protections, you can safeguard your users and your reputation.
Frequently Asked Questions
HTTP security headers provide an extra layer of security by restricting the behaviors of browsers when they visit your site. They can prevent common attacks like Cross-Site Scripting (XSS), clickjacking, and packet sniffing by instructing the browser on how to handle content and connections.
CSP is one of the most powerful security headers. It allows site administrators to declare which dynamic resources are allowed to load. A well-crafted CSP can almost entirely eliminate the risk of XSS attacks by blocking unauthorized scripts from executing.
The `X-Frame-Options` header is used to indicate whether or not a browser should be allowed to render a page in a `<frame>`, `<iframe>`, `<embed>` or `<object>`. You can fix it by adding `X-Frame-Options: DENY` or `SAMEORIGIN` to your server's response headers.