Free tool
Analyze suspicious email headers.
Paste the raw headers from any email and we will trace its path, check SPF/DKIM/DMARC authentication, detect sender mismatches, and flag red flags. Everything runs in your browser — nothing is sent to our servers.
Email Header Analyzer
Detect Phishing & Spoofing
Paste the raw email headers from a suspicious email. We will analyze the authentication results, sender information, and email path to detect signs of phishing or spoofing. Everything runs in your browser.
All analysis happens locally in your browser. No email data is sent to any server.
Analysis Results
Paste headers and press Analyze
Analysis results will appear here