Free checks
Free domain security checks
Every check below runs in the same free scan, in about 20 seconds, with no signup.
- DMARC checker Look up your DMARC record, see what p=none, quarantine or reject means for your domain, and get the next safe step. Run the check →
- Domain expiry checker Check your domain's expiry date, holds and transfer lock before a failed renewal takes your website and email down. Run the check →
- Find all SSL certificates for a domain List every public certificate issued for your domain and its subdomains from Certificate Transparency logs, with issuers and expiry dates. Run the check →
- Free domain security report for MSP prospects Scan a prospect's domain free: lookalikes, certificates, SPF, DMARC and registration in a shareable report, plus talking points and an email template. Run the check →
- Lookalike domain checker Find registered domains that look like yours, from misspellings to other endings, and see which ones can already send email. Free, no signup. Run the check →
- SPF lookup counter Count the DNS lookups in your SPF record, including nested includes, and see whether you're at or over the limit that causes PermError. Run the check →
- SSL certificate expiry checker Check when the certificate on each of your hostnames expires, and whether a renewed one was issued but never installed. Run the check →
- Subdomain takeover checker Free check for dangling DNS records. Finds your subdomains in public certificate logs and flags any that point at deleted cloud resources anyone can claim. Run the check →
- WHOIS privacy check See whether your domain's registration data shows a person's name or email to anyone who looks, and how to hide it. Run the check →
Monitoring
Keep checking, every day
Start free with one domain fully monitored, and get an alert when something changes.