portchecker

Understanding how a Port Checker Tool works is easier than it sounds. The tool simply checks communication between your system and a specific port. It does not change anything on your device. It only tests and reports. When you enter an IP address or domain name and a port number, the Port Checker Tool sends a request to that port. Think of it like knocking on a door. If the door is open, someone answers. If the door is closed, there is no response.