Port Checker

Want to know if a port on your internet connection is open to the world? Our Auto Port Checker scans your public IP and tells you in seconds. It’s ideal for troubleshooting router settings, checking remote access, or verifying firewall rules.

What is the Auto Port Checker?

The Auto Port Checker is a simple online tool to check if a specific network port is open or closed on your router or device.

It’s useful for:

• Testing port forwarding on your router
• Troubleshooting connection issues for games, servers, or apps
• Checking security to ensure unused ports are closed

How it works:

• Uses your public IP address (detected automatically)
• Tests if the port is reachable from outside your network
• Works only on devices you own

Example:
Testing port 80 shows closed → no web server is reachable on your connection at that port.

Common Router Ports:

Security Notes:

• Only check ports on devices you own or have permission to test.
• Using a VPN or proxy may affect results.
• Open ports can be entry points for hackers, keep unused ones closed.