ToolsPort Scanner

Port Scanner

Scan for open ports on a host with our secure server-side scanning tool

Higher values increase accuracy but slow down scanning. Recommended: 1000-3000ms

Features

Fast & Reliable

Our server efficiently scans ports and provides accurate results

Secure

All scanning is done securely with rate limiting to prevent abuse

Customizable

Choose between common ports or specify your own port ranges to scan

How It Works

Our port scanner works by attempting to establish TCP connections to each port on the target host. Here's how the scanning process works:

  1. Connection Attempt: The server tries to establish a TCP connection to each specified port.
  2. Response Analysis: The system analyzes whether the connection was successful, indicating an open port.
  3. Service Identification: Common port numbers are mapped to their standard services for quick identification.
  4. Results Compilation: All findings are compiled into a comprehensive report showing open and closed ports.

Note: This port scanner should only be used on hosts you own or have explicit permission to scan. Unauthorized port scanning may be illegal in some jurisdictions. The tool implements rate limiting to prevent abuse.