// Free tool

Domain & DNS checker

Enter a domain to check the foundations of its security: its registration and expiry, whether it is locked against transfer, where and how it is hosted, whether DNSSEC protects it from tampering, and which certificate authorities can issue TLS certificates for it. Runs in your browser. Nothing is stored.

We check public DNS records only. Nothing about your check is saved.

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Checking…

Checking records for

What this tool covers. This reports the registration, hosting, DNS, and certificate-trust facts of your domain using the public registry (RDAP), encrypted DNS-over-HTTPS, and public IP data. To inspect your website's security headers, HTTPS enforcement, cookies and TLS, use our Website Security Checker; for a full TLS certificate grade run Qualys SSL Labs; and to check your email records use our Email Security Checker. For a complete review of your security, talk to us.
// What this means for your business

The basics done right are what keep you off the news

DNS and certificate hygiene is one layer. Real protection comes from getting every layer right and keeping it that way: email, endpoints, backups, and the day-to-day support behind them. That is what we do for small Canadian businesses, as one team you can call.