IPChecker Pro

IPChecker Pro

Port Checker Tool

Check TCP port availability on any host or IP address

Common Ports
About Port Checking

Port Checker is a free online tool to check TCP port availability on remote hosts and IP addresses. Our port scanner helps system administrators, developers, and security professionals quickly diagnose network connectivity issues.

Common ports and their purposes:

  • Port 80 (HTTP) - Unencrypted web server
  • Port 443 (HTTPS) - Secure web server
  • Port 22 (SSH) - Remote SSH access
  • Port 21 (FTP) - File transfer
  • Port 25 (SMTP) - Email sending
  • Port 3306 (MySQL) - MySQL database

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Port Checker - Online Open Port Check Tool

Port Checker is a professional tool for network diagnostics. Check if TCP/UDP ports are open on any server in seconds. Essential for firewall configuration, server setup, and network security.

Common Ports

  • 80/443 - HTTP/HTTPS (web server)
  • 22 - SSH (remote access)
  • 3306 - MySQL (database)
  • 3389 - RDP (Remote Desktop)
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