The technology commonly used in online video streaming is Adaptive Bitrate Streaming. This technique adjusts the quality of the video stream in real-time based on the user’s internet connection and device capabilities, ensuring smooth playback without buffering. This flexibility allows for varying bandwidth conditions, making the content accessible across different platforms and network environments. Additionally, technologies like Content Delivery Networks (CDNs) are used to distribute video content efficiently, minimizing latency and improving user experience.