DMARC World Map

Latest snapshot of SPF/DMARC coverage by hosting country.

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Map view

Glossary & methodology

SPF coverage

The percentage of scanned domains that publish an SPF record. SPF helps mail servers confirm which systems are allowed to send email for a domain, reducing spoofing.

DMARC coverage

The percentage of scanned domains that publish a DMARC policy. DMARC tells receiving mail servers how to handle suspicious mail and provides reporting for domain owners.

Methodology & limitations

  • Domain list source: Tranco (top 7,000 domains in this snapshot).
  • SPF/DMARC data gathered via DNS lookups.
  • Registrant country (RDAP) is a best-effort field and not always available.
  • Hosting country derived from IPinfo geolocation (best-effort).
  • Rate limits and network timeouts can reduce coverage in some regions.