What percentage of internet traffic is projected to use CDNs by 2021?

Question

By 2021, it was projected that a substantial portion of internet traffic, estimated to be as high as 70%, would traverse at least one Content Delivery Network (CDN). This trend underscores the increasing reliance on CDNs for efficient content delivery across the global internet infrastructure. Major players in this space, such as Cloudflare, Amazon Web Services (AWS) CloudFront, and Alibaba Cloud, alongside significant contributors like Akamai and Incapsula, have become integral to the digital ecosystem.

Accepted Answer

The proliferation of CDNs stems from their effectiveness in distributing web content to a worldwide audience. By employing a network of geographically dispersed servers, CDNs enable users to access cached versions of websites from the server closest to their location. This distributed architecture significantly enhances website performance by reducing latency, accelerating load times, and optimizing bandwidth consumption. Beyond performance improvements, a Multi-CDN strategy also offers a robust defense against distributed denial-of-service (DDoS) attacks, a growing concern for online businesses. With the number of DDoS attacks escalating, with NETSCOUT reporting approximately 7.5 million such attacks in 2017 alone, implementing a comprehensive DDoS mitigation plan is crucial to prevent prolonged service disruptions and reputational damage.

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What percentage of internet traffic is projected to use CDNs by 2021?

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