DMARC check
Check DMARC policy, alignment, and reporting settings via DNS.
The DNS query is sent directly from the browser to Google Public DNS. Nyttio does not store the data.
1. Enter domain
Quick selection (popular domains)
2. Overview
3. Detailed DMARC analysis
4. Evaluation & recommendations
5. Test domain (optional)
Test a subdomain to see whether a direct record exists or it inherits the checked policy in this simplified check.
6. Raw DNS data
–DNS lookup privacy
The DNS query goes directly to Google Public DNS. Nyttio does not store or log the domain.
About DMARC
DMARC builds on SPF and DKIM alignment and publishes the domain's requested handling and report addresses.
Tool capabilities
Validates syntax and analyzes policy, reporting, and current and historic tags.
Export results
Save or copy the analysis locally.
Related tools
DKIM check
Check and validate DKIM keys via DNS-over-HTTPS.
Email header analysis
Analyze delivery path, metadata, and reported authentication results locally.
SPF check
Check and analyze SPF via encrypted DNS-over-HTTPS.
SSL certificate check
Check certificate chain, domain matching, and TLS configuration.