Content Security Policy Generator
Create secure Content Security Policy (CSP) headers for your website. Protect against XSS attacks and other security vulnerabilities with our easy-to-use CSP generator.
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Default Source
Default fallback for fetch directives. Serves as a fallback for other resource types when they don't have their own policies.
Enter space-separated list of allowed sources
Features
A comprehensive tool for creating and testing Content Security Policies.
Security Focused
Generate secure CSP headers with recommended security settings and real-time validation
Smart Templates
Pre-built templates with security level indicators and impact analysis
Live Preview
Real-time policy preview with syntax highlighting and security score
Custom Templates
Save and manage your own CSP templates for quick access
Advanced Validation
Comprehensive policy validation with security recommendations
Risk Analysis
Detailed security analysis with risk assessment and mitigation tips
Visual Editor
Intuitive visual editor with category-based directive organization
Policy History
Track changes and compare different policy versions
How to Use
Simple 4-step process
Step 1
Select a template or start from scratch with security level guidance
Step 2
Configure directives with visual feedback and real-time validation
Step 3
Review security score and implement recommended improvements
Step 4
Copy the generated policy with platform-specific implementation examples
Frequently Asked Questions
Everything you need to know about our process, pricing, and technical capabilities.
See Full FAQContent Security Policy (CSP) is a critical security mechanism that helps prevent cross-site scripting (XSS), clickjacking, and other code injection attacks. It acts as a whitelist, specifying which content sources are trusted by your web application. CSP provides granular control over resource loading, significantly reducing the risk of content injection vulnerabilities.
A good CSP implementation follows these principles: Uses specific source directives instead of relying solely on default-src Avoids unsafe-inline and unsafe-eval whenever possible Implements nonce-based or hash-based script/style validation Sets appropriate frame-ancestors to prevent clickjacking Uses strict-dynamic for modern applications Includes reporting endpoints for violation monitoring
Follow these steps for effective CSP testing: Start with Content-Security-Policy-Report-Only header Monitor CSP violation reports Use browser developer tools to identify blocked resources Test across different browsers and pages Gradually move to enforcement mode Maintain a reporting endpoint even after full deployment
For third-party integrations: Document all required external resources Use specific host names instead of broad wildcards Consider subresource integrity (SRI) for external scripts Regularly audit and update allowed sources Use separate policies for different sections of your site if needed
Common pitfalls to avoid: Using overly permissive wildcards (*) Enabling unsafe-inline without nonces/hashes Forgetting to include all legitimate sources Not testing in Report-Only mode first Ignoring CSP violation reports Not updating policies when adding new features
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About Content Security Policy
Content Security Policy (CSP) is a crucial security feature that helps protect websites from various attacks, particularly Cross-Site Scripting (XSS) and other code injection attacks. By carefully defining which content sources are allowed, CSP creates a strong security barrier for your web applications.
Implementation Tips
Start with Report-Only mode to identify potential issues before enforcement. Gradually tighten your policy based on reports, and always test thoroughly across your entire website.