Ping is a measurement of the time it takes for a tiny data packet to go from your device to a remote server and back. Ping describes the round-trip time it takes for a signal to go from your device to the server used for testing and back again in the context of internet speed tests. Typically, ping is measured in milliseconds (ms). A lower ping number implies that your device and the server are communicating more quickly. A higher ping number indicates that data travels more slowly, resulting in longer response times.