CDN (Content Delivery Network)

What is it?

A CDN is a worldwide network of servers that keeps copies of your content close to viewers, so video reaches each person from a server near them instead of traveling across the planet. It's the difference between one central warehouse shipping everything, and having local stores in every city.

Practical example

A live show is broadcast from Dubai. A viewer in Toronto doesn't pull the video all the way from Dubai — they get it from a CDN server in Canada that already holds the latest chunks. Result: the stream starts faster, buffers less, and the platform's own servers don't collapse when 100,000 people tune in at once.

Key things to know (non-technical)

• It's how live video scales: 10 viewers or 10 million, the origin does roughly the same work because the CDN absorbs the crowd.
• Works hand-in-hand with HLS: small chunks are easy to copy and cache everywhere.
• Usually rented from providers (Cloudflare, Akamai, AWS CloudFront...) rather than built in-house.
• Bandwidth through the CDN is a major ongoing cost line for any video platform — often the biggest one.

In Tupic Live

A CDN is non-negotiable for Tupic Live the moment audiences grow: it keeps playback smooth across regions and protects the core servers — and CDN bandwidth will likely be the platform's largest running cost to plan pricing around.