CSP Evaluator

Paste your Content-Security-Policy header and get an instant grade, score, and actionable findings. No sign-up required.

Evaluate your CSP header

What does this tool check?

A

Policy grade & score

Overall letter grade (A–F) and numeric score from 0–100 based on directive coverage and strictness.

B

Directive analysis

Identifies unsafe keywords (unsafe-inline, unsafe-eval), missing directives, and overly permissive wildcards.

C

Actionable findings

Each issue is rated Critical, High, Medium, Low, or Info — so you know exactly what to fix first.

Want automatic CSP enforcement?

ProxiedGuardians generates and enforces your CSP at the edge — no code changes required. Start free on one domain.