What is Ping and How Do I Use It? ping is a software utility that allows you test if you can reach a host (such as another computer, or a website domain). It also measures the round-trip time between your computer and the host.   Windows: Open a command prompt. Type ping hostname.domain.com  or ping If you get a reply, it means that you are connected to the network and able to contact the computer you are attempting to communicate with.   macOS: Open Terminal.app Type ping hostname.domain.com or ping If you get a reply, it means that you are connected to the network and able to contact the computer you are attempting to communicate with.