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Internet Safety

Email Header & Spoofing Analyser

Inspect pasted email headers for authentication failures, identity mismatches, routing anomalies and structural warning signs.

Inspect email headers

Paste the raw headers from an email to inspect authentication evidence, identity consistency, routing structure and technical anomalies. Everything is analysed locally in your browser.

Maximum size: 100 KB. The pasted headers remain in this browser tab and are never stored, uploaded, transmitted or sent to an external service.