Email Header Analyzer
Trace a message from its raw headers
Paste the raw headers of an email and read them like a map: who really sent it, the path it travelled, and whether SPF, DKIM and DMARC passed — all in your browser, nothing uploaded.
How to read the results
- 1.In your email client, open the message and choose "Show original" / "View source" / "Show raw", then copy everything and paste it here.
- 2.We parse the Received chain to show the delivery path and read the Authentication-Results for SPF, DKIM and DMARC verdicts.
- 3.Everything runs locally in your browser — the headers are never sent anywhere.
Why it matters
Email headers are the message’s honest paper trail. When something looks like phishing or spoofing, the headers reveal where it truly came from and whether it authenticated.
Frequently asked questions
Is my email uploaded anywhere?
No. This tool parses the headers entirely in your browser; nothing leaves your device.
What should I look for in a suspicious email?
Check whether SPF/DKIM/DMARC passed and whether the sending domain in the earliest Received line matches the claimed From address.