DMARC Checker

Inspect DMARC enforcement and the SPF/DKIM signals it depends on.

Results will appear here.

What this check tells you

DMARC tells receivers what to do when aligned SPF or DKIM authentication fails. Start with monitoring, review aggregate reports, then move toward quarantine or reject once legitimate senders are aligned.

How to use the result

• Confirm the queried name is the exact hostname used by the affected service.
• Compare the returned values with the intended record in your authoritative DNS provider.
• Check TTL before changing records again; cached answers can outlive a rollback.
• Run the full domain report to correlate DNS with TLS, HTTP, routing, and provider incidents.

Queries use public DNS data. No account is required, and analytics never receives the domain you enter.