Free tool
Email authentication checker
Check your domain's SPF, DKIM, and DMARC. Get a grade, see exactly what's missing, and a plain-English fix list.
We only read public DNS records. Enter your email to get your grade and fix-it guide.
What this checks (and what it doesn't)
This tool reads your public DNS records to grade your email authentication — the setup that decides whether your emails reach the inbox and whether others can spoof your domain. It's a fast, honest first look.
The full Domain & Deliverability Review goes further — registrar security, WHOIS exposure, subdomain inventory, and a prioritized fix list with the exact values to change.