Content Security Policy (CSP) Generator
Build robust Content Security Policy headers to mitigate Cross-Site Scripting (XSS) and data injection attacks.
Policy Directives
Additional Flags
Generated CSP Output
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Delivering CSP via HTTP response headers (e.g.,
Content-Security-Policy) is strongly recommended over HTML meta tags for complete coverage.
CSP Best Practices
- Restrict by Default: Start with strict defaults (`'self'`) and explicitly whitelist trusted external domains as needed for your application architecture.
- Avoid Unsafe Directives: Minimize or eliminate the use of `'unsafe-inline'` and `'unsafe-eval'` to effectively block injection attacks.
- Testing Policies: Consider implementing your policy using `Content-Security-Policy-Report-Only` initially to monitor violations without breaking site functionality.