HardThinker

HardThinker

Building free security tools for SMBs
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Scan your website for vulnerabilities in seconds. Free security grade (A-F), subdomain discovery, and attack surface analysis. No signup needed. Trusted by 2,300+ security team. Enter any domain and get an A-F security grade instantly. Checks subdomains, live hosts, and technology stack. No signup needed. Paid reports include vulnerability details, OWASP mapping, and remediation steps.
VulnScan
VulnScanFree website security audit grade in 10 seconds