Technical SEO Wiki Entry

Security Headers

HTTP response headers that strengthen browser security and user trust.

Important security headers include Content-Security-Policy (CSP), Strict-Transport-Security (HSTS), X-Frame-Options, X-Content-Type-Options, Referrer-Policy and Permissions-Policy. Strong security headers can be tested at securityheaders.com. While not direct ranking factors, they protect users, prevent abuse and signal a well-maintained site.

Related Entries

HTTPS

The secure version of HTTP that encrypts data between browser and server.

HSTS (HTTP Strict Transport Security)

A response header that forces browsers to use HTTPS for a domain.

Content Security Policy (CSP)

A header restricting which resources a page can load, mitigating XSS attacks.

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