As mentioned earlier,Network Jitter Test,Is a variance in latency, or the time delay between when a signal is transmitted and when it is received. testmyinternetspeed.org,This variance is measured in milliseconds (ms) and is described as the disruption in the normal sequence of sending data packets.Good connections have a reliable and consistent response time, which is represented as a lower jitter score. The higher the jitter score, the more inconsistent response times are, which manifests in choppy calls or glitch-sounding looking video quality.