Rethink Technology Research finds that Multi-CDN accounts for 72% of Total CDN by 2025, as developing regions with worse Public CDN options surpass North America and Europe.
Predominantly targeting live video, and driven by the emergence of the SRT, RIST, and CMAF protocols, these Pure WebRTC services are projected to grow from around 1.2% to 8.3% of total Multi-CDN traffic.
As much as 70% of peak traffic can be offloaded using WebRTC, helping CDN suppliers to avoid infrastructure upgrades, enabling CDN resellers to do more with their existing budgets, and helping CDN customers to move towards live video.
Many CDNs make use of WebRTC, to augment their capacity, but a group of Pure WebRTC services will emerge that do not use a CDN in any form.
As the percentage of global internet traffic that is video creeps up from 69.4% to 75.8%, between 2020 and 2025, Multi-CDN deployments will graduate from commonplace to essential. The Multi-CDN market will grow to $24 billion, as more video services begin using multiple CDN suppliers, to ensure better resilience and quality of service, and to negotiate lower prices from CDN suppliers.
Amid this battle between Public CDN and Private CDN options, we also expect the emergence of Pure WebRTC distribution services, as an alternative to CDNs. Predominantly targeting live video, and driven by the emergence of the SRT, RIST, and CMAF protocols, these Pure WebRTC services are projected to grow from around 1.2% to 8.3% of total Multi-CDN traffic – as streaming video services turn to cheaper alternatives to CDNs.
WebRTC will also play a very important role for the Public CDN and Private CDN offerings, as a way to offload peak traffic from the CDNs. As much as 70% of peak traffic can be offloaded using WebRTC, helping CDN suppliers to avoid infrastructure upgrades, enabling CDN resellers to do more with their existing budgets, and helping CDN customers to move towards live video.
Multi-CDN, as we are defining it in this forecast, is being counted as traffic that can be attributed to video services that are using more than one CDN provider. This could be a combination of two or more Public CDN vendors, or a Private CDN service that was built solely for the use of that customer. In some instances, Private CDNs are extensions of what Public CDN vendors provide, or simply a firm that buys capacity from a vendor like Akamai and then resells it to video services.
The Pure WebRTC services are also going to be examined under this umbrella definition, because we believe they are direct rivals to the conventional CDN approach. Many CDNs make use of WebRTC, to augment their capacity, but a group of Pure WebRTC services will emerge that do not use a CDN in any form. However, as those services compete directly with both Private CDN and Public CDN, and because Multi-CDN deployments are increasingly becoming standard practice, Pure WebRTC should be examined through this lens.
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