Free tool

Will your email actually arrive?

Check your domain's SPF, DKIM, and DMARC records in seconds. No signup, no email required — just the DNS records that decide whether your mail lands in an inbox or a spam folder.

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  • Domain verification

    Automated DNS checks for SPF, DKIM, and DMARC with step-by-step setup guides.

  • Deliverability insights

    Live delivery latency, DMARC monitoring, Google Postmaster and Microsoft SNDS integration.

  • Live deliverability

    Our own delivery rate, handoff latency, and SMTP probe results — published, not claimed.