Website defence · Local browser tool
Content Security Policy Analyzer
Parse a Content-Security-Policy value, identify risky source expressions and explain missing defence-in-depth directives.
Use the tool
Enter only data you are authorised to inspect. The result is a focused technical check, not a certification or full vulnerability assessment.
What it checks
Clear scope. Reproducible output.
- unsafe-inline, unsafe-eval and wildcard sources
- Script, object, base, frame and form restrictions
- Nonce, hash and reporting signals
Questions
Does Content Security Policy Analyzer upload my input?
No. The working tool runs in the current browser tab. Avoid browser extensions or shared devices when handling sensitive material.
Does a passing result prove my system is secure?
No. It proves only the checks described on this page against the input you supplied. Server behaviour, business logic and runtime vulnerabilities require separate authorised testing.
Why is the result different from a live scanner?
This tool analyses pasted or local data. A live scanner observes network responses, DNS, TLS and redirects, so its evidence and scope are different.