Live DNS verification

Free SPF & DMARC checker

Enter a domain to check SPF, DMARC, and subdomain policies. Results come straight from live DNS — no sign-up required.

What we check

SPF record

Verifies which mail servers are authorised to send email for your domain. Prevents simple spoofing.

DMARC policy

Tells receivers what to do with mail that fails SPF/DKIM: monitor, quarantine, or reject.

DMARC strictness

Checks whether your policy is p=none (no protection) vs p=quarantine or p=reject.

Subdomain policy

Ensures your DMARC sp= doesn't leave subdomains unprotected when the parent domain is strict.