Show HN: A CSP header scanner that explains what's unsafe

Category: security

Tags: csp, security-scanner, xss-prevention

Score: 5.0/10 (Innovation: 4, Technical: 5, Documentation: 6, Utility: 6)

CSP Radar provides a free online tool to scan any public URL's Content Security Policy header, grading it for security and XSS risks with actionable remediation advice. It simplifies CSP analysis for developers and security teams without requiring login, making it a practical utility for web security hardening.

Target audience: backend devs, devops, security engineers

Repository: https://cspradar.com/tools/csp-scanner

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