HTTP SECURITY HEADERS AUDIT
Scan HTTP security headers, HSTS preloading, CSP directives, cookie security flags, and security grade assessment.
HSTS Validation
Ensure your site is forcing secure connections with HTTP Strict Transport Security, protecting against protocol downgrade attacks.
CSP Analysis
Verify your Content Security Policy to prevent Cross-Site Scripting (XSS) and dangerous data injection attacks.
Security Grading
Get an instant A+ to F grade based on industry-standard security headers metrics, identical to SecurityHeaders.com criteria.
How Header Analysis Works
Initiate Request
We send an automated HTTP HEAD/GET request to your server, simulating a standard browser visit.
Parse Headers
The server's HTTP response headers are extracted and analyzed for missing or misconfigured security directives.
Grade & Report
We calculate an overall security grade and provide actionable advice on how to improve your server configuration.
Frequently Asked Questions about Security Headers
What are HTTP Security Headers?
HTTP Security Headers are a subset of HTTP response headers that instruct the browser on how to behave when handling your website's content. They provide an essential layer of security by restricting modern browsers from running into vulnerabilities like XSS, clickjacking, and code injection.
Why do I need a Content Security Policy (CSP)?
CSP is one of the most powerful headers available. It allows site administrators to declare approved sources of content that the browser may load. By defining exactly where scripts, images, and styles can be loaded from, you effectively neutralize Cross-Site Scripting (XSS) attacks.
How do I fix a missing X-Frame-Options?
X-Frame-Options protects your visitors against clickjacking attacks by preventing your site from being embedded into iframes on malicious sites. You can fix this by adding `X-Frame-Options: SAMEORIGIN` or `DENY` in your web server configuration (e.g. Nginx, Apache, or LiteSpeed).