7 Security Headers

Security Headers
Checker & Grade

Scan your website's HTTP security headers. Check for HSTS, CSP, X-Frame-Options, and more. Get an instant security grade.

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7 Headers Analyzed
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Security Headers FAQ

What are HTTP security headers?
HTTP security headers are directives sent by a web server in response headers that tell browsers how to behave when handling your site's content. They protect against XSS, clickjacking, MIME sniffing, and other attacks.
Why are security headers important for SEO?
Google considers site security as a ranking factor. HTTPS is confirmed, and robust security practices signal trust. Security issues can also lead to browser warnings that increase bounce rates.
What is Content-Security-Policy (CSP)?
CSP is a powerful header that controls which resources (scripts, styles, images) can be loaded. It's the best defense against XSS attacks and is recommended by Google.
What is HSTS?
HTTP Strict Transport Security forces browsers to only use HTTPS. It prevents downgrade attacks and is essential for any site using SSL/TLS.

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