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Email Header Analyser
Paste the raw headers of a message. This rebuilds the route it travelled, surfaces the SPF, DKIM and DMARC verdicts the receiving server already recorded, and points out the mismatches that phishing relies on.
Nothing leaves your browser
This tool runs entirely in the page you are looking at. What you enter is never sent to us or to anyone else, is not stored, and disappears when you close the tab. It also never fetches anything on your behalf. It works only on what you give it.
Input
Nothing analysed yet. Paste something above and press the button.
