Think of your computer network like a house. Your IP Address is the street address that helps the mailman find you. But once the mailman arrives, he needs to know which door to deliver the package to. Those doors are called Ports. You have 65,535 of them. Some are for emails, some for web pages, some for games, and some for security cameras. A Network Port Checker is a tool that walks up to your digital house and tests the doorknobs. It tells you which doors are locked tight (Secure), which ones are wide open (Active), and which ones might be secretly letting strangers in (Dangerous). Whether you are a gamer trying to host a Minecraft server, a home user trying to view your security cameras remotely, or just someone worried about hackers, this tool is your first line of defense. What Is a Network Port Checker? A Network Port Checker is an online utility that tests the accessibility of specific ports on your internet connection. It works by sending a signal (a "packet") from a...