Port Checker & Scanner

What is a Port Checker?

A port checker tests whether a specific TCP port on a host is open (accepting connections) or closed/filtered. Network ports are virtual endpoints that allow different services to run simultaneously on the same machine — for example, port 80 for HTTP, 443 for HTTPS, 22 for SSH.

This tool performs a real TCP connection attempt from our server to the target, giving you accurate external reachability status.

How to Use

1. Enter the target host (domain or IP) in the Target Host field.
2. Enter the port number (1–65535).
3. Click Quick Check for a single port result.
4. Click Launch Batch Scan to scan all common ports at once.

Common Ports Reference

• 21 — FTP (file transfer)
• 22 — SSH (secure shell)
• 80 — HTTP (web traffic)
• 443 — HTTPS (secure web)
• 3306 — MySQL database
• 3389 — RDP (remote desktop)
• 8080/8443 — Alt HTTP/HTTPS