DMARC Record Checker
Verify DMARC DNS records. Policy, RUA, RUF, alignment.
Queries _dmarc.domain TXT record.
How to use
- Enter a domain, URL, or value relevant to DMARC Record Checker.
- Run the check and review the output carefully.
- Apply recommended fixes, then run the check again to verify.
Common use cases
- Pre-deployment validation for DMARC Record Checker.
- Incident triage when security checks fail in production.
- Periodic security review as part of technical SEO and hardening.
Example inputs
example.comgmail.comCommon issues and fixes
No DMARC record
_dmarc.domain has no TXT record. Add DMARC to reduce spoofing and improve deliverability.
Policy p=none only
p=none is monitoring only. Move to p=quarantine or p=reject for enforcement.
SPF/DKIM alignment fails
DMARC requires aligned SPF or DKIM. Match From domain with mail-from or d=.
Recommended remediation
Add _dmarc TXT record with v=DMARC1; p=quarantine or reject. Add rua= for reports. Ensure SPF and DKIM pass alignment.
FAQ
Is DMARC Record Checker free to use?
Yes. This tool is free and can be used without account registration.
Do you store submitted values?
Only the minimum processing needed for the check. For client-side tools, data stays in your browser.
How should I use these results?
Use the output as a diagnostic baseline, apply fixes in your stack, then re-run the check to confirm remediation.
Related security tools
DNS Lookup
Query DNS records (A, AAAA, MX, TXT, NS, CNAME) for any domain using public DNS API.
SPF Record Checker
Fetch and parse SPF (Sender Policy Framework) records for a domain to validate email security.
DKIM Record Checker
Verify DKIM DNS records. Domain + selector → TXT lookup and parse.
MX Record Lookup
Check mail server (MX) records. Priority order.