Scan any website for security misconfigurations in 10 seconds. GuardScan checks HTTP security headers, SSL/TLS certificates, DNS configuration (SPF, DMARC, DNSSEC), and cookie security, then gives you a letter grade from A+ to F with clear explanations for every finding. Beta users get platform-specific fix guides for Nginx, Apache, and Cloudflare, plus PDF reports and scan history. No signup required. Just enter a URL and scan.