SiteSecurityScore is a free web based tool that evaluates HTTP security headers to help improve website security. Users can submit a URL to generate an immediate security score, complete with detailed analysis and remediation guidance. The platform reviews Content Security Policy, HSTS, X Frame Options, Permissions Policy, cookie configurations, and TLS certificates. Additional resources include security header generators, educational implementation guides, and an API for automated assessments. Designed for developers, security professionals, and DevOps teams focused on enhancing application security standards.