Free Tool by ShieldDesk

Is your business
email actually secure?

Most small businesses fail basic email security checks and don't know it.
Enter your domain below — results in under 10 seconds. No signup required.

domain://

We only read publicly available DNS records. We never access your servers or store sensitive data.

Initializing scan...
[ ] Resolving domain...
[ ] Checking SPF record...
[ ] Checking DMARC policy...
[ ] Checking DKIM selector...
[ ] Generating security report...
Security report for
Security Score / 100

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What we check & why it matters

01 — SPF
Sender Policy Framework
Tells email servers which IPs are allowed to send mail for your domain. Without it, anyone can send email pretending to be you.
02 — DMARC
Domain-based Auth & Reporting
The policy layer that tells servers what to do with fraudulent emails — quarantine them or reject them outright.
03 — DKIM
DomainKeys Identified Mail
A cryptographic signature on every email you send, proving it genuinely came from you and wasn't tampered with in transit.
04 — MX
Mail Exchange Records
Validates your mail routing is properly configured. Misconfigured MX records cause lost email and open security gaps.
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