Run any of these security checks for free — no account required. Each tool provides instant results with actionable remediation guidance.
Check if your domain has a valid DMARC record and verify its enforcement level. Detect misconfigured or missing DMARC policies that leave your domain open to email spoofing.
Check DMARC →Verify your SSL/TLS certificate chain, check expiry dates, and detect self-signed or misconfigured certificates that cause browser warnings and break visitor trust.
Check SSL →Validate your SPF record syntax and check for common issues like too many DNS lookups, missing includes, or overly permissive policies that allow anyone to send email as your domain.
Check SPF →Run a comprehensive security audit across all nine check categories — SSL, DNS, DMARC, SPF, CVEs, breaches, lookalike domains, WHOIS, and safe browsing — in one scan.
Run Health Check →Discover subdomains associated with your domain using Certificate Transparency logs. Identify shadow IT, forgotten services, and unintended exposure from staging or dev environments.
Find Subdomains →Look up domain registration details including registrar, nameservers, creation date, and expiry. Track changes that could indicate domain hijacking attempts.
Look Up WHOIS →