Email header analyzer
Paste raw email headers to explain delivery hops and authentication evidence. Analysis stays in this browser and does not claim that a message is absolutely safe.
How to read the result
Received fields describe servers that handled a message. SPF, DKIM and DMARC results are reported claims from those systems. Compare the route and domains with the context in which you received the message.
Limits and responsible use
Headers can be forged or incomplete. This analyzer performs no DNS lookups, reputation checks or malware scanning and must not be used as the only safety decision.
Local processing
The text is processed only after you click Analyze. It is not written to the URL, storage, analytics or a server request. Clear the page when finished.
Frequently asked questions
Does this tool send my input to a server?
No. The tool runs in this browser after you choose to use it. Your pasted content or generated result is not added to URLs, storage, analytics or server requests.
Does a clean result guarantee that an email or account is safe?
No. These tools explain technical clues and reduce routine risk, but they cannot replace your judgment, malware protection, account security controls or advice from a qualified security professional.