A Port Checker Tool is an online or offline tool that checks whether a specific network port is open or closed. In simple words, it tells you if data can pass through a port or not. Ports act like doors on your computer or server. If the door is open, data can come in and go out. If it is closed, data is blocked. Every device connected to the internet has ports. These ports are numbered, such as port 80, port 443, port 21, and many more. Each port is used for a specific purpose. For example, port 80 is used for normal websites, and port 443 is used for secure websites (HTTPS).. https://portchecker.com.co/
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