Port Forward Tester

Test if your port forwarding rules are working correctly. Verify that ports are accessible from the internet to diagnose NAT, firewall, or router configuration issues.

Target Host

Enter your public IP address or domain name to test external accessibility.

Ports to Test

Comma-separated ports or ranges. Max 100 ports.

Quick Port Presets

Protocol

Timeout (ms)

Grab service banners

How it works

This tool attempts to connect to the specified ports from an external server, simulating how someone on the internet would try to reach your services. Use it to verify port forwarding, firewall rules, and service availability.

Pen-Quest