Free External Security Scan
Discover what attackers see when they look at your organization. Get a comprehensive external attack surface assessment — completely free.
Scan Your Domain
Enter your domain to receive a comprehensive external security assessment. Results will be emailed to you within 24 hours.
What We Scan For
Our external attack surface assessment checks for common vulnerabilities and misconfigurations
SSL/TLS Security
Certificate validity, cipher strength, and protocol versions
DNS Configuration
DNSSEC, SPF, DKIM, DMARC records and configuration
Open Ports & Services
Exposed services, unnecessary open ports, and banners
Security Headers
CSP, HSTS, X-Frame-Options, and other HTTP headers
Email Security
SPF, DKIM, DMARC policies and email authentication
Known Vulnerabilities
CVE checks on detected software and services
Need help fixing what we found?
Browse our directory of vetted cybersecurity providers who can help remediate vulnerabilities and strengthen your security posture.