Port Checker is a simple and free online tool for checking open ports on your computer/device, often useful in testing port forwarding settings on a router
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Open Port Checker Tools can provide accurate information about the status of open or closed ports.
However, certain factors, such as firewall settings, network configurations, or stealthy port filtering techniques, may affect the tool's accuracy.
It's always recommended to use multiple tools and methods to verify the status of ports.