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
"Barrion's security scanning has helped us implement best security practices efficiently, saving us countless hours."
Sarah Chen
Head of Security
"We identified and fixed critical vulnerabilities before our platform launch, saving us from potential data breaches."
Marcus Anderson
CTO
"Barrion gives us peace of mind, knowing we're notified of any security issues. Exactly what our team needed."
Oskar Nilsson
Tech Lead
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.
View results
See security findings with prioritized, actionable recommendations.
What this scan checks
We probe common ports non‑intrusively to surface externally reachable services and basic banners when available.
How to reduce exposure
- Close unused ports at firewall/load balancer
- Restrict by IP lists and VPN where possible
- Place admin panels behind SSO/MFA
- Prefer managed endpoints behind a reverse proxy
Tool-specific questions
Is this intrusive?
Why do ports appear open intermittently?
Which ports do attackers scan most?
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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