DMARC Records Tools
Visually trace your DMARC fallback tree and DNS hierarchy. Accurately resolve CNAME delegations, detect multi-record conflicts, and identify the effective organizational policy protecting your deep subdomains.
DMARC follows strict RFC 7489 rules: If a subdomain lacks a record, receivers skip intermediate domains and jump straight to the root Organizational Domain. This tool visualizes that exact path, detects CNAME delegations, and flags conflicting TXT records on the same node.
DMARC doesn't just look at one domain. It traverses your DNS tree based on strict fallback rules. Ensure your infrastructure is properly configured across all levels.
a.b.c.com, DMARC checks that exact domain, then skips b.c.com entirely to query the root c.com. We trace this exact RFC behavior visually.v=DMARC1 TXT records on the same domain node causes automatic failure at the receiver level. We identify and alert on multi-record conflicts instantly..co.uk or .com.au correctly.p=reject policy, use this tool to guarantee that your complex DNS architecture won't accidentally cause legitimate subdomains to fail.Your feedback has been submitted successfully. We appreciate your help in improving our tools.