The fastest free online vulnerability scan for any website. Detect SQL Injection, XSS, SSRF, open ports, and 200+ known CVEs. No downloads, no account — Fast results.
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VulnScan is the leading free online vulnerability scanner trusted by security teams worldwide. Unlike basic ping tools, our online vulnerability scan engine combines 50+ security engines to detect real, exploitable weaknesses in your web application, infrastructure, and SSL configuration.
Whether you need a quick free online vulnerability scan before launch, or a comprehensive deep-dive into your attack surface, VulnScan delivers professional results directly in your browser — zero installation required.
Most online vulnerability scanners are outdated, require email signups, or give you vague results that don't tell you what to actually fix. VulnScan was built by penetration testers who hated the existing tools.
Our online vulnerability scan runs from an external vantage point — the same perspective a real attacker has. This means we find vulnerabilities that internal monitoring completely misses: exposed subdomains, misconfigured servers, and publicly accessible admin panels.
An online vulnerability scanner is a web-based security tool that scans your website or server for known vulnerabilities without requiring any software installation. You simply enter a domain or URL and the scanner analyzes your target from an external perspective, the same way an attacker would.
Enter your domain in the scanner at the top of this page. VulnScan's free online vulnerability scan will immediately begin checking your subdomains, open ports, SSL configuration, and security headers. Your results appear quickly with no signup required.
For external attack surface discovery, online scanners are extremely effective and can find 70-80% of common vulnerabilities. They're not a replacement for manual penetration testing, but they're an essential first step that catches the most critical, automated-exploitation-ready vulnerabilities.
Best practice is to run a free online vulnerability scan monthly, or immediately after any significant infrastructure change (new server, plugin update, major deployment). New CVEs are published daily — a site that was clean last month may be vulnerable today.
A vulnerability scan (like VulnScan) is automated, fast, and identifies known vulnerabilities and misconfigurations. A penetration test involves manual exploitation by a human security expert to chain vulnerabilities together and show business impact. Start with a free online vulnerability scan to identify obvious issues, then consider a pentest for compliance requirements.
Free, instant, no signup. Find out exactly where your website stands.