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What is Port Scanner?
Scan for open ports on any server or IP address. Identify running services, check firewall configurations, and find potential security vulnerabilities. Essential for network security assessments.
Key Features
How to Use Port Scanner
Enter the target hostname or IP
Specify ports to scan (or use common ports)
Click Submit to scan
Review open ports and services
Common Use Cases
Tips & Best Practices
Only scan servers you own or have permission to scan
Common ports to check: 80 (HTTP), 443 (HTTPS), 22 (SSH), 3306 (MySQL)
Close unnecessary open ports to improve security
Frequently Asked Questions
Is port scanning legal?
Scanning your own servers is legal. Scanning others' without permission may violate laws. Only scan servers you own or have authorization to test.
Which ports should be open?
Only ports needed for your services (80/443 for web, 22 for SSH, 25 for email, etc.). Close everything else.
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