SenderLedger tools
Free email authentication tools.
Check what the public DNS says about a domain, understand the result and find the right next step—without creating an account.
Available now
DMARC, SPF and DKIM checker
Look up a domain's DMARC policy, analyse its SPF dependency graph and verify a DKIM public key when you know the selector. The result includes one concise sentence explaining the current state.
DMARC
Policy and enforcement
SPF
Record and lookup limit
DKIM
Selector and key health
From check to enforcement
DNS shows the setup. Reports show what really sends.
A public check can spot missing or unsafe records, but it cannot identify every legitimate platform using your domain. SenderLedger adds live DMARC evidence, sender ownership, remediation cases and proof that enforcement will not block genuine email.