Content Delivery Networks (CDNs) help deliver digital content to end-users; by leveraging a cryptoeconomic model, a distributed network can outcompete existing providers with far more localized nodes and higher-performance.
CDN’s are critical components of our modern internet infrastructure and are responsible for efficiently delivering digital content to users around the world. They work by strategically placing servers in various locations around the globe, allowing them to store cached versions of web content closer to end-users. Closer proximity means reduced latency and improved load times, which enhances user experience.
How traditional CDNs function today is effectively:
The challenges and limitations here are some of the common ones we see that make distributed versions enticing. Traditional CDNs rely on a centralized network infrastructure which comes with single points of failure, vulnerability & reduced resiliency to attacks and bottlenecks. There’s limited scalability because meeting increased demand is costly and complex while maintaining server infrastructure and expanding the network is expensive. There’s also a latency issue when it comes to reaching remote regions as it’s not economically viable to have servers in every location across the globe.
Distributed CDN’s on the other hand leverage blockchains and P2P networks to more efficiently and quickly scale while reducing the maintenance burden and improving the user experience. By distributing content across a network of nodes, independently operated we can eliminate single points of failure while also allowing for dynamic scalability. As more users join the network, the capacity and performance of the CDN scales, drastically reducing the need for costly infrastructure build-out.
The distributed CDN also incentivizes participants to contribute resources — such as bandwidth or storage — in exchange for rewards, and leverage idle resources to significantly reduce operational costs relative to the traditional model. Security is an added benefit as unauthorized access or data breaches are drastically mitigated.
Content providers (i.e. Disney, ESPN, Peacock, etc) are seeing more users move from broadcast television to streaming — as a result content delivery costs are exploding. 4k/UHD experiences will only continue, leading to more aggressive data consumption growth.
At the same time, TV viewership is falling & broadcasters are struggling — TV broadcasts can serve a near-infinite number of viewers with a single flat-rated channel, but traditional CDN costs increase linearly based on the number of viewers.