Sisältöjakeluverkkoja

Sisältöjakeluverkkoja, often abbreviated as CDN, are geographically distributed networks of proxy servers and their data centers. The primary purpose of a CDN is to provide high availability and performance by distributing the service spatially relative to end-users. CDNs cache content, such as web pages, images, videos, and other downloadable files, at edge servers located closer to users. When a user requests content, the CDN directs the request to the nearest edge server, reducing latency and improving load times.

This distributed nature allows CDNs to handle a large volume of traffic and protect origin servers from being overwhelmed, especially during traffic spikes. By serving content from multiple locations, CDNs also enhance the reliability of content delivery, as if one server is unavailable, traffic can be rerouted to another. CDNs are crucial for modern web infrastructure, supporting everything from e-commerce and streaming services to online gaming and software distribution. They play a significant role in optimizing the user experience by ensuring fast and consistent access to digital content worldwide.