Email Header Analyzer - SPF, DKIM & DMARC Check

Analyze email headers to verify SPF, DKIM, and DMARC authentication. Detect spoofing and trace email routing paths. Free browser-based tool.

Authentication checks

Analyzes SPF, DKIM, and DMARC results from email headers.

Routing and spoofing signals

Shows received hops, return-path alignment, and suspicious header signals.

Privacy

This tool runs entirely in your browser. No data is sent to or stored on any server.

Email Header Analyzer

Parse and analyze email headers to verify authentication, detect spoofing, and trace routing paths.

Email Headers

Email headers are analyzed locally in your browser. Nothing is uploaded.