5 Essential Security Headers Every Website Needs in 2026

Security doesn't end with an SSL certificate. HTTP Security Headers are a powerful layer of defense that tells the browser how to handle your site safely. The most critical header is HSTS (Strict-Transport-Security), which ensures all connections are encrypted, preventing man-in-the-middle attacks.

Other essential headers include Content-Security-Policy (CSP) to prevent cross-site scripting (XSS) and X-Frame-Options to stop clickjacking. By properly configuring these, you significantly reduce your website's attack surface.

Our Advanced Reports now include a Security Compliance check that audits these headers for you. If you're missing a critical piece of protection, we'll let you know immediately, helping you maintain a "Grade A" security posture.