Processing boundary
Input is processed only in the active browser tab's memory and is not sent to a ByteQuant server.
89
Code & file security
HTTP Security Headers Auditor
Parses raw HTTP response headers locally and reports duplicates or gaps in CSP, Strict-Transport-Security, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, and framing protection. It sends no request and does not validate TLS, application code, or live redirect behavior.
✓ Free✓ No account✓ In-browser
Persistent storage
Input and output are not stored. The optional usage counter keeps only tool identity and count, never content.
Verification
Output comes from disclosed rules or browser APIs and needs independent review before high-impact use.
A result in three steps
- 01
Paste raw headers from a response you are authorized to inspect.
- 02
Run the local audit and review missing, duplicate, or risky values.
- 03
Verify findings against the live HTTPS response, browser console, and application threat model.
When is this tool useful?
- ✓ Pre-release header checks
- ✓ Comparing CDN/proxy configurations
- ✓ Planning a CSP rollout
Important limitation
Automated output is a preliminary assessment. Do not use it alone for legal, financial, medical, or security-critical decisions.
LEARN THE WORKFLOW
Guides for this tool
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Frequently asked questions
Does this tool send input to a server?+
No. Processing runs in this browser tab. Data leaves the page only when you choose to copy or download the result.
Is the result definitive?+
The tool produces consistent output from disclosed rules and browser APIs, but context, data quality, and method limitations can affect it. Verify high-impact decisions.
Is input saved?+
No. Tool input is not persisted. With consent, only tool identity and usage count may be kept on this device for personal shortcuts.