Free Open Ports Scan (Non-Intrusive)
Run a passive, non-intrusive scan for commonly exposed ports and services.
Identify external exposure and reduce attack surface.
- Common port scan
- Non-intrusive
- Service banner hints
"The ROI has been exceptional. We've prevented three potential security incidents in the first quarter alone, and the platform pays for itself in risk mitigation."
— Elena Rodriguez
VP of Engineering
"We identified and fixed critical vulnerabilities before our platform launch, saving us from potential data breaches."
— Marcus Anderson
CTO
"Implementation was seamless and continuous monitoring gives our team confidence. We've seen a 40% reduction in security incidents since adopting Barrion."
— David Kim
Chief Security Officer
"The automated scanning and detailed reporting have transformed our security posture. We've reduced our vulnerability remediation time from weeks to days."
— Priya Sharma
Security Director
"Barrion's passive scanning approach means zero impact on our production systems while providing security insights. Perfect for our high-traffic environment."
— Robert Taylor
DevOps Lead
"The reporting feature saved us weeks of manual work during our SOC 2 audit. The automated report generation is a game-changer."
— Michael Brown
Compliance Officer
"Barrion's security scanning has helped us implement best security practices efficiently, saving us countless hours."
— Sarah Chen
Head of Security
"Barrion gives us peace of mind, knowing we're notified of any security issues. Exactly what our team needed."
— Oskar Nilsson
Tech Lead
"The detailed vulnerability reports and remediation guidance have been invaluable. Our development team can now address issues proactively rather than reactively."
— Amanda Foster
Engineering Manager
"Barrion's real-time alerts have helped us catch and fix vulnerabilities before they become critical issues. The peace of mind is worth every penny."
— Jennifer Martinez
Security Architect
"We needed a solution that could scale with our growing infrastructure. Barrion has exceeded expectations and become an essential part of our security toolkit."
— Lisa Wang
Infrastructure Director
Scan in three simple steps
Fast, safe, non-intrusive checks with actionable results.
Start scan
Enter your URL, and click the start scan button to begin.
Scan runs
Barrion performs passive, read-only security checks with minimal site impact.
Take Action
Fix issues with step-by-step guidance and enable monitoring for continuous protection.
What this scan checks
- Web services (80, 443, 8080, 8443)
- SSH and remote access (22, 3389, 5900)
- Database services (3306, 5432, 1433, 6379, 1521, 27017, 27018, 5984)
- Email services (25, 110, 143, 993, 995)
- File sharing (21, 22, 2049)
- Modern services (Docker, WinRM, and 30+ critical ports)
- 4-tier risk categorization (Critical, High, Medium, Low)
- Dynamic scoring with risk-based point deduction
- Port-specific security recommendations
- Attack surface mapping with risk prioritization
- External accessibility testing from external perspective
- Comprehensive attack surface mapping
- Service exposure analysis with security recommendations
- Parallel scanning with proper timeouts for efficiency
Security Risks of Open Ports
- Increases potential entry points for attackers
- Exposes services that may have vulnerabilities
- Provides reconnaissance information to attackers
- Enables service-specific attack techniques
- Service identification and version detection
- Outdated software versions with known exploits
- Misconfigured services and unnecessary features
- Unencrypted data transmission and storage
- Violates security best practices and standards
- May breach compliance requirements (PCI DSS, HIPAA)
- Increases audit findings and remediation costs
- Demonstrates poor security posture to stakeholders
How to reduce exposure
- Address Critical and High-risk ports first
- Follow port-specific security recommendations
- Use risk categorization to prioritize fixes
- Implement dynamic scoring to track improvements
- Implement firewall rules to block unnecessary ports
- Use network segmentation and VLAN isolation
- Configure load balancers and reverse proxies
- Implement IP whitelisting and access controls
- Disable unused services and unnecessary features
- Update software to latest secure versions
- Configure strong authentication and access controls
- Implement encryption for data in transit and at rest
Tool-specific questions
Is this port scan intrusive or harmful?
Why do some ports appear open intermittently?
Which ports are most commonly targeted by attackers?
What's the difference between open and filtered ports?
How often should I scan for open ports?
What should I do if I find unexpected open ports?
Can I use this scan for compliance auditing?
What's the best way to secure database ports?
How does the risk categorization system work?
Why Choose Barrion?
Real-Time Results
Instant security analysis with detailed reports, giving you an immediate security overview
Comprehensive Checks
Multiple best-practice security checks in a single scan, for broad coverage
Actionable and Effective
Clear recommendations for fixes, helping you improve your security quickly and effectively
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Security Audit Tool
Comprehensive security audit with compliance readiness check. Get audit-ready reports with detailed findings.
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Security Compliance Checker
Check compliance with PCI DSS, HIPAA, SOC 2, ISO 27001, and GDPR. Get compliance readiness reports.
- PCI DSS compliance check
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- Compliance gap analysis
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Detect Web Application Firewall presence through passive header analysis. Identify WAF/CDN providers.
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