Video Delivery Technologies: HLS, DASH, and CDN Synergy

Video Delivery Technologies: HLS, DASH, and CDN Synergy Video delivery today rests on three pillars: HLS, DASH, and a fast content network. HLS (HTTP Live Streaming) and DASH (Dynamic Adaptive Streaming over HTTP) split video into small chunks and let the player switch quality as bandwidth changes. They rely on manifest files to describe available qualities and how to fetch the chunks. HLS uses an M3U8 playlist, while DASH uses an MPD document. Because both formats work over standard HTTP, they play nicely with modern CDNs and web servers. This combination makes it easy to serve video across devices, from desktop browsers to mobile apps and smart TVs. ...

September 21, 2025 · 3 min · 458 words