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Header Auditor — Free Online Analyzer

Header Auditor analyses header and reports what it found in a form you can act on. Everything is computed locally in your browser — your data never leaves your device. Completely free, with no account required.

How to use Header Auditor

1. Provide the input you want analysed.
2. Run the analysis.
3. Review the findings, and export them if needed.

Frequently asked questions

How reliable are the results?

All measurements are computed with real code in your browser, so results are exact and reproducible.

Can I export the report?

Yes. Results can be copied out, and report-style tools offer a download.

Is my input stored?

No. Analysis runs locally in your browser.

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