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Free security tool
Check email authentication records for your domain
Review SPF, DKIM, and DMARC signals that help stop spoofing and protect your domain reputation.
Run the full scan
Get this check plus the complete WebSentry security report for the URL.
What it checks
SPF record
DMARC policy
DKIM presence
Policy strength
DNS email auth posture
Why it matters
Email authentication helps prevent attackers from spoofing your domain and improves trust with customers and inbox providers.
Common fixes
Publish SPF for approved senders
Add DKIM for each email provider
Move DMARC from p=none toward quarantine or reject
Turn one check into ongoing protection.
Create an account to save scan history, export reports, and monitor sites for security grade drops.