Video analytics metrics measure how well video content is delivered and consumed. Key metrics include startup time (how fast videos begin), buffering ratio (proportion of time spent buffering), bitrate (quality), and viewer abandonment. Together, these metrics define Quality of Experience (QoE)—how satisfied viewers are with video playback. Video analytics platforms (Conviva, Mux, Bitmovin) collect real-user data from millions of video streams. Analysts use this data to identify bottlenecks (network issues, server problems, poor ABR algorithms), optimize delivery, and ultimately increase watch time and revenue.