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Email header analyzer

Paste raw headers → sender path, SPF/DKIM/DMARC & tracking pixels

🔒 runs locally · no upload · no tracker

Analyze raw email headers: sender path, SPF/DKIM/DMARC results and hidden tracking pixels — all locally.

💡 Why this tool?

Phishing and spoofing are often only visible in the headers. Reading the sender path and authentication exposes forgeries.

Your benefits

  • ✓Shows every delivery hop (Received)
  • ✓Evaluates SPF, DKIM and DMARC
  • ✓Detects tracking pixels in the HTML part

🔧 How it works

  1. 1Open "Show original" in your mail client
  2. 2Paste the entire header text
  3. 3Check path, authentication and pixels

❓ Frequently asked questions

Is my email sent anywhere?▼
No. Headers are parsed entirely locally in your browser. Nothing is uploaded.
What is analyzed?▼
Sender/recipient, the Received path (hops), authentication (SPF/DKIM/DMARC) and — if HTML is included — possible tracking pixels.
Where do I find the headers?▼
In most email clients via "Show original" / "View source". Paste the entire text here.