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SPF and DMARC Checker

Look up published SPF, DMARC and MX records for a domain without sending email or claiming delivery verification.

Free No sign-up Instant results

Use the exact mail domain. Published records do not prove delivery or authentication.

The hostname is sent through our server to Google Public DNS. Your website is not fetched. No test email is sent.

Result

Your result will appear here

What is SPF and DMARC Checker?

SPF and DMARC Checker is a free online website tool from GigaTools. Look up published SPF, DMARC and MX records for a domain without sending email or claiming delivery verification. It works in any browser on desktop or mobile, with no account or installation needed.

Common uses

  • Find the published SPF and DMARC records for a mail domain.
  • Inspect mail server DNS alongside authentication records.

How it works

How to use SPF and DMARC Checker

Enter the mail domain

Use the exact domain involved in your mail setup, not an email address.

Look up the records

Read TXT on the domain, TXT on _dmarc.domain and MX records from Google Public DNS.

Review with your provider

Use the published evidence to investigate setup. A record lookup cannot test delivery or actual message authentication.

FAQ

Good to know

How do I use SPF and DMARC Checker?

1. Enter the mail domain: Use the exact domain involved in your mail setup, not an email address. 2. Look up the records: Read TXT on the domain, TXT on _dmarc.domain and MX records from Google Public DNS. 3. Review with your provider: Use the published evidence to investigate setup. A record lookup cannot test delivery or actual message authentication.

Is this complete SPF or DMARC validation?

No. It locates matching records and flags duplicates. It does not expand SPF includes, count recursive lookups, evaluate sending IPs or apply parent-domain DMARC policy.

Will it tell me whether email reaches my inbox?

No. DNS records alone cannot verify mailbox creation, forwarding, sender reputation, alignment or delivery. No test email is sent.

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