HTTP Security Header Analyzer
Scan your site for essential security headers. Prevent XSS, Clickjacking, and sniffing attacks with proper configuration.
Website Security Score
Analyze your HTTP security headers (HSTS, CSP, etc.) and get a security grade.
Why Manual Checks Aren't Enough
Checking manually works for debugging, but what happens when a critical issue arises while you sleep?
- Automated MonitoringWe check your critical paths every 15 minutes, not just when you remember to.
- Visual EvidenceSee exactly what your user sees. We capture screenshots of the final landing page.
- History & LogsKeep a permanent record of reliable uptime and performance for compliance.
Free Tool vs. SiteSnapshot
Enforce HSTS
Ensure browsers always use secure HTTPS connections, preventing downgrade attacks.
Prevent XSS
Use Content-Security-Policy (CSP) to control which resources can be loaded, stopping malicious scripts.
Block Clickjacking
Set X-Frame-Options to prevent your site from being embedded in iframes on malicious sites.
What are HTTP Security Headers?
HTTP security headers are response headers that tell the browser how to behave when handling your website's content. They are a fundamental layer of defense against common attacks like XSS (Cross-Site Scripting), Clickjacking, and Code Injection.
Essential Headers We Check
- Strict-Transport-Security (HSTS): Forces the browser to use HTTPS connections only. Prevents SSL stripping attacks.
- Content-Security-Policy (CSP): The strongest defense against XSS. Controls which scripts, styles, and images can load.
- X-Frame-Options: Stops other sites from embedding your page in an iframe (Clickjacking protection).
- X-Content-Type-Options: Prevents MIME-sniffing, ensuring the browser respects the declared content type.
A score of "F" means your site is vulnerable to basic attacks. Aim for an "A" grade by implementing these headers in your server config (Nginx/Apache) or CDN (Cloudflare/Vercel).
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