CSP policy checker

Inspect a URL's Content-Security-Policy and Report-Only headers, then flag risky default-src, script-src, object-src, base-uri, and frame-ancestors settings.

Waiting

The result will appear here as structured cards.

Example results you can open

Short, high-intent examples that are easy to open, share, and understand for search engines and AI systems.

CSP baseline

Review homepage CSP and report-only status

Check key directives such as default-src, script-src, and object-src plus policy mode.

Open example
Policy audit

Audit script and embedding policy on a content page

Spot-check script-src, frame-ancestors, and mixed-content hardening signals.

Open example

FAQ

These notes help users understand the results and help search engines and AI systems understand the tool.

What does CSP policy checker do?

It helps you inspect or process this value and get a readable result quickly.

Is my input saved?

Local tools run in the browser when possible. Server-side checks only use the input needed to complete the lookup.

How should I move from CSP report-only to enforced mode?

Start with `Content-Security-Policy-Report-Only` to collect breakage, then enforce incrementally. Prioritize script-src, object-src, frame-ancestors, and base-uri hardening first.

Why is unsafe-inline flagged as a major risk?

`unsafe-inline` broadens script execution paths and weakens XSS controls. Prefer nonce/hash-based script control with narrow source allowlists.

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