27 Parallel Security Scanners

Run a comprehensive security analysis across headers, SSL/TLS, CORS, cookies, directories, DNS, technology fingerprinting, and ports — all in parallel, all in under 60 seconds.

Traditional security scanning tools run checks sequentially, one after another, turning a thorough assessment into a process that can take minutes or even hours. Vuln0x takes a fundamentally different approach. All 27 scanning engines fire simultaneously the moment you submit a URL, running in parallel across isolated workers. The result is a full-spectrum security report delivered in under 60 seconds, covering everything from low-level infrastructure configuration to high-level framework-specific vulnerabilities.

Each scanner is purpose-built for a specific attack surface. HTTP Security Headers analysis ensures your server responses include Strict-Transport-Security, Content-Security-Policy, and other critical headers that protect against clickjacking, MIME-type sniffing, and cross-site scripting. The SSL/TLS Certificate scanner validates your entire certificate chain, checks for weak protocols like TLS 1.0 and 1.1, and verifies that your cipher suites meet modern cryptographic standards. DNS Security audits cover SPF, DMARC, DNSSEC, CAA records, zone transfer protection, and certificate transparency monitoring, ensuring your domain cannot be spoofed or hijacked.

On the application layer, CORS Configuration testing identifies wildcard origins, origin reflection vulnerabilities, and credential exposure through misconfigured cross-origin policies. Cookie Security inspection verifies that session cookies carry the Secure, HttpOnly, and SameSite flags that prevent interception and cross-site request forgery. The Directory and File Exposure scanner probes approximately 45 common paths for accidentally exposed configuration files, backups, version control data, and admin panels that should never be publicly accessible.

For modern JavaScript applications, Vuln0x includes a dedicated suite of framework-specific scanners. Source Map Exposure detection finds production source maps that could reveal your entire codebase. Client-Side Secret Leakage scanning searches JavaScript bundles for API keys, database connection strings, and authentication tokens that should only exist on the server. XSS Detection identifies dangerous patterns like dangerouslySetInnerHTML and unescaped user input in React components. SSRF Detection catches unrestricted URL fetching in API routes and server components that could let attackers reach internal services and cloud metadata endpoints.

Infrastructure Scanners

Analyze your server configuration, network security, and DNS setup.

HTTP Security Headers

1 credit

Analyzes HTTP response headers for security best practices including HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy.

What it checks:

  • Strict-Transport-Security (HSTS)
  • Content-Security-Policy (CSP)
  • X-Frame-Options
  • X-Content-Type-Options
  • Referrer-Policy
  • Permissions-Policy
  • X-XSS-Protection deprecation

SSL/TLS Certificate

1 credit

Validates SSL/TLS certificate chain, expiration, protocol versions, and cipher suite strength. Detects weak protocols like TLS 1.0/1.1 and insecure cipher configurations.

What it checks:

  • Certificate validity and expiration
  • Certificate chain completeness
  • Protocol version (TLS 1.2/1.3)
  • Cipher suite strength
  • Certificate transparency logs
  • OCSP stapling support

DNS Security

5 credits

Comprehensive DNS security audit covering email authentication, DNSSEC, certificate authority authorization, zone transfer protection, and certificate transparency monitoring.

What it checks:

  • SPF record configuration
  • DMARC policy enforcement
  • DNSSEC validation
  • CAA record presence
  • Zone transfer protection
  • Certificate transparency logs
  • MX record security

Technology Fingerprinting

1 credit

Identifies the technology stack powering your application and detects exposed API keys or sensitive tokens in the HTML source code.

What it checks:

  • Frontend framework detection
  • Server technology identification
  • CMS and platform detection
  • JavaScript library versions
  • Exposed API keys in HTML
  • Meta generator tags

Port Scanning

5 credits

TCP connect scan across 45 commonly targeted ports to identify exposed services that could be exploited by attackers.

What it checks:

  • Database ports (3306, 5432, 27017)
  • Admin panels (8080, 8443)
  • SSH and remote access (22, 3389)
  • Mail services (25, 587, 993)
  • Cache services (6379, 11211)
  • Message queues (5672, 9092)

Application Scanners

Test your web application for common security misconfigurations.

CORS Configuration

1 credit

Tests Cross-Origin Resource Sharing configuration for security weaknesses including wildcard origins, origin reflection, and credential exposure.

What it checks:

  • Wildcard Access-Control-Allow-Origin
  • Origin reflection vulnerabilities
  • Credential exposure via CORS
  • Preflight request handling
  • Exposed headers review

Cookie Security

1 credit

Inspects all cookies for security flags. Ensures session cookies are protected with Secure, HttpOnly, and SameSite attributes.

What it checks:

  • Secure flag on HTTPS cookies
  • HttpOnly flag on session cookies
  • SameSite attribute configuration
  • Cookie scope and path restrictions
  • Session cookie expiration

Directory & File Exposure

5 credits

Probes approximately 45 common exposed files and directories that should not be publicly accessible, including configuration files, backups, and version control data.

What it checks:

  • .env and .env.local files
  • .git directory exposure
  • Backup files (.bak, .old, .sql)
  • Configuration files (wp-config.php, web.config)
  • Admin panels and dashboards
  • Package manager files (package.json, composer.json)
  • Source code files in production

Framework-Specific Scanners

Deep analysis tailored for Next.js, React, and modern JavaScript frameworks.

Source Map Exposure

1 credit

Detects publicly accessible JavaScript source maps that can reveal your entire source code, internal file structure, and implementation details.

What it checks:

  • Production source map file access
  • sourceMappingURL references
  • Webpack/Next.js build artifact exposure

Client-Side Secret Leakage

1 credit

Scans JavaScript bundles for accidentally exposed API keys, tokens, and secrets that should only exist on the server side.

What it checks:

  • API keys in client bundles
  • Database connection strings
  • Authentication secrets
  • Third-party service credentials
  • Environment variable leaks

Authentication Logic

1 credit

Analyzes authentication implementation for common flaws in session management, token handling, and access control patterns.

What it checks:

  • Session fixation vulnerabilities
  • Token storage best practices
  • Auth bypass patterns
  • Password reset flow security

XSS Detection

1 credit

Tests for cross-site scripting vulnerabilities in React/Next.js applications, including dangerouslySetInnerHTML usage and unescaped user input rendering.

What it checks:

  • dangerouslySetInnerHTML patterns
  • Unescaped user input rendering
  • DOM-based XSS vectors
  • Reflected XSS in URL parameters

SSRF Detection

1 credit

Identifies server-side request forgery risks in API routes and server components that could allow attackers to access internal services.

What it checks:

  • Unrestricted URL fetching in API routes
  • Server component URL handling
  • Internal network access vectors
  • Cloud metadata endpoint exposure

How Parallel Scanning Works

When you submit a URL to Vuln0x, the scan orchestrator immediately dispatches the request to all 27 scanning engines simultaneously. Each engine runs in its own isolated worker process, ensuring that one slow or complex check never blocks the others. The results stream back in real time, so you can see findings appear as each scanner completes, long before the entire suite has finished.

This architecture delivers several key advantages. First, speed: 27 sequential scans that would take several minutes individually complete in the time it takes for the slowest single scanner to finish, typically under 60 seconds. Second, reliability: if one scanner encounters an error or timeout, it fails gracefully without affecting the other 26. Third, accuracy: each scanner is purpose-built for its specific domain, so a header analysis engine is never trying to double as a port scanner. Every engine is optimized for exactly one thing and does it well.

Behind the scenes, the scan pipeline works in three phases. During the discovery phase, the orchestrator resolves DNS, establishes the target connection, and collects initial metadata that informs the individual scanners. During the analysis phase, all 27 engines run concurrently, each performing its specific checks against the target. During the scoring phase, results from all engines are aggregated, weighted by severity and category, and used to calculate your final 0-100 risk score with its corresponding letter grade.

The parallel architecture also makes it possible to offer both full-suite scans and individual scanner runs. A full scan engages all 27 engines for a comprehensive assessment, while an individual scan lets you target a specific area, such as running only the SSL/TLS check to verify a certificate renewal, or only the Directory Exposure scanner after deploying a new build. Individual scans cost fewer credits and return results even faster, making them ideal for focused verification tasks.

Full Scans vs Individual Scans

Full Security Scan

A full scan runs all 27 engines simultaneously, producing a comprehensive security assessment with a single risk score. This is the recommended option when you want a complete picture of your application's security posture or when onboarding a new project for the first time.

  • All 27 scanning engines in parallel
  • Composite 0-100 risk score with letter grade
  • Exportable reports in SARIF, CSV, PDF, JSON
  • Scan comparison available for trend tracking
  • Results in under 60 seconds

Individual Scanner

Run a single scanner to focus on a specific area of concern. Individual scans are perfect for verifying a fix, checking a specific configuration after deployment, or when you only need to validate one aspect of your security setup without consuming credits for a full assessment.

  • Choose any single scanning engine
  • Lower credit cost per scan
  • Faster results for focused checks
  • Ideal for post-fix verification
  • Same detailed findings and remediation advice

Built for Modern Web Applications

The web security landscape has shifted dramatically with the rise of AI-assisted development. Projects that once took teams of engineers weeks to build are now scaffolded and deployed in a single afternoon using tools like Replit, Bolt, Lovable, Cursor, and v0. These tools generate functional code at remarkable speed, but they often produce applications with security gaps that a human developer might catch during a manual code review: missing security headers, overly permissive CORS policies, exposed environment variables, publicly accessible source maps, and API routes vulnerable to server-side request forgery.

Vuln0x bridges this gap. Our 27 parallel engines are calibrated to detect the exact categories of vulnerabilities that AI-generated code is most prone to introducing. The Infrastructure Scanners verify that your server, DNS, and TLS configurations meet industry best practices. The Application Scanners test for the misconfigurations that appear when default settings are deployed without hardening. And the Framework-Specific Scanners go deep into the Next.js, React, and modern JavaScript patterns that generic security tools simply do not understand.

Every finding comes with a severity rating, a clear explanation of the risk, and actionable remediation guidance. You will never see a vague warning without context. Instead, each vulnerability report tells you exactly what was found, why it matters, what an attacker could do with it, and step-by-step instructions for fixing it. For developers using AI coding assistants, we even format remediation advice in a way that can be directly pasted into an AI chat to generate the fix.

Whether you are scanning a single landing page or monitoring dozens of microservices across multiple environments, Vuln0x SecurityScanner gives you the visibility and control you need to ship with confidence. Start scanning for free today and see what 27 parallel security engines can uncover in under 60 seconds.

Start securing your vibe-coded projects today

20 free credits on signup. No credit card required.