DMARC Record Checker

DMARC Record Checker is a fast, privacy-friendly tool for email administrators, IT professionals, and security teams who need to verify DMARC configuration at a glance. Enter any domain — or let the extension auto-fill the site you're currently visiting — and instantly see whether a valid DMARC record is published, how strict the policy is, and what could be improved. ━━━━━━━━━━━━━━━━━━━━━━━━━━ WHAT YOU GET ━━━━━━━━━━━━━━━━━━━━━━━━━━ • Instant DMARC lookup via DNS-over-HTTPS — no servers, no tracking • Auto-fills the domain of your current browser tab • Full raw TXT record with one-click copy • Clear policy breakdown: p=, sp=, pct= with plain-English explanations • Tag-by-tag analysis covering v, p, pct, rua, ruf, sp, adkim, aspf, fo, rf, ri • Health score with pass / warn / fail checks against RFC 7489 • Actionable recommendations to strengthen your configuration • Identifies missing rua=, weak policies, low pct, and alignment issues • Clean, modern interface that works on any domain ━━━━━━━━━━━━━━━━━━━━━━━━━━ WHO IT'S FOR ━━━━━━━━━━━━━━━━━━━━━━━━━━ • Email administrators auditing their domains • IT and security teams verifying customer or vendor configurations • Penetration testers and OSINT researchers • Marketers troubleshooting deliverability • Anyone curious whether a brand has DMARC enforcement ━━━━━━━━━━━━━━━━━━━━━━━━━━ PRIVACY ━━━━━━━━━━━━━━━━━━━━━━━━━━ • No accounts, no sign-ups, no analytics • No data is collected, stored, or transmitted to any third party other than the public Google Public DNS resolver used to perform the lookup • Runs entirely in your browser — no background scripts, no tracking • Open and inspectable source ━━━━━━━━━━━━━━━━━━━━━━━━━━ HOW IT WORKS ━━━━━━━━━━━━━━━━━━━━━━━━━━ The extension queries the _dmarc.<domain> TXT record using Google's public DNS-over-HTTPS endpoint, parses each tag according to RFC 7489, and runs a series of validation checks to score the configuration. Click the extension icon, confirm or change the domain, and review the full report.