Tools we built because we were tired of using the bad ones.
No email-gate. No upsell modal between you and a result. Shareable URLs for every report. Good enough to earn a bookmark — bookmark them, please.
“A tool that needs a signup to show the first result isn't a tool, it's a mousetrap.”
DMARC analyzer
Most popularLive DMARC + SPF + DKIM + MTA-STS read-out for any domain, with a plain-English verdict.
DMARC record generator
Wizard → one-line TXT record. Explains every tag, flags the dangerous defaults.
SPF lookup counter
Find out why your SPF is blowing past the 10-lookup cliff — with a collapsible resolution tree.
Email header analyzer
Paste raw headers → get the auth-results verdict, source IP, and a timeline of every hop.
Deliverability checker
Predict inbox placement at Gmail, Outlook, Yahoo, and Apple. Reads SPF + DKIM + DMARC + BIMI + MTA-STS, scores per-provider verdicts.
Nothing to sign up for. Just fewer 2 a.m. phone calls.
These tools run the same engine our paid product runs. If you like what they return, the full platform does the same thing but continuously, with alerts, against every domain you own.