Free Security Scanner
Scan Your Website for Vulnerabilities
in Minutes — Free
Paste your URL below. AI agents run real penetration tests against your application and report every vulnerability they find. No signup, no setup, no agents to install.
How the Free Security Scan Works
01
Paste Your URL
Enter your website or web app URL. Nullscan runs externally — no code access or installation needed.
02
AI Agents Attack
Multiple AI agents run real penetration tests simultaneously — testing for injection, auth bypass, XSS, and more.
03
Get Your Report
Receive a detailed report with every vulnerability found, severity ratings, and affected endpoints.
What the Scanner Tests For
Nullscan covers the most exploited vulnerability categories in web applications, aligned with OWASP Top 10 standards.
SQL Injection
Tests database queries for injection vulnerabilities that could expose or modify your data.
Cross-Site Scripting
Checks for XSS vulnerabilities where attackers could inject malicious scripts into your pages.
Auth Bypass
Attempts to access protected resources without proper authentication or authorization.
SSRF
Tests for server-side request forgery where your server could be tricked into making internal requests.
IDOR / Access Control
Checks for insecure direct object references and broken access control between users.
Path Traversal
Tests if attackers can access files or directories outside the intended scope.
Rate Limiting
Checks if sensitive endpoints like login and password reset are protected against brute force attacks.
Security Headers
Verifies that essential security headers like CSP, HSTS, and X-Frame-Options are properly configured.
Free Scan vs Full Report
Free Scan
- Vulnerability titles and severity levels
- Affected endpoints identified
- Impact assessment for each finding
- Risk level rating
- Attack surface mapping
- Categories tested overview
Full Report — $39
- Everything in the free scan
- Step-by-step reproduction instructions
- Proof-of-concept exploit code
- Fix guidance and remediation steps
- Full technical analysis
- PDF report export
Why Developers Trust Nullscan
Nullscan uses autonomous AI agents to simulate real-world attacks — the same techniques actual attackers use, but safely and non-destructively.
Real Pentesting
Not just header checks. AI agents actively probe your endpoints, inputs, and authentication flows.
Non-Destructive
All tests are safe. No data exfiltration, no denial of service, no credential brute forcing.
No Setup Required
External scanning only. No code access, no agents to install, no configuration needed.
Frequently Asked Questions
Is the security scan really free?
Yes. The free scan runs real penetration tests against your website. You get vulnerability titles, severity levels, and affected endpoints. Detailed reproduction steps, proof-of-concept code, and fix guidance are available when you unlock the full report for $39.
How long does a scan take?
Most scans complete in 5-15 minutes depending on the size of your application. AI agents test multiple endpoints simultaneously to keep scan times short.
Is it safe to scan my website?
Yes. Nullscan performs non-destructive testing only. It does not run denial-of-service attacks, brute force credentials, or exfiltrate any data. All tests are designed to identify vulnerabilities without harming your application or its users.
What vulnerabilities does it test for?
Nullscan tests for SQL injection, cross-site scripting (XSS), authentication bypass, IDOR and broken access control, server-side request forgery (SSRF), path traversal, rate limiting issues, and security header misconfigurations — covering the most critical OWASP Top 10 categories.
Do I need to install anything?
No. Nullscan is a fully external scanner. Just enter your URL and the scan runs from our infrastructure. No agents, browser extensions, or code modifications required.
Can I scan any website?
You can scan any publicly accessible website that you own or have explicit permission to test. Nullscan requires consent confirmation before every scan.
What happens after the free scan?
After the scan completes, you can view the results immediately. If vulnerabilities are found, you can unlock the full report with reproduction steps and fix guidance for $39, or run a deeper Pro ($250) or Deep Analysis ($899) scan for more comprehensive testing.
Ready to Scan Your Website?
Find out if your website has security vulnerabilities. Free scan, no signup, results in minutes.
Start Free Scan