CDN (Content Delivery Network)

A content delivery network (CDN) is a geographically distributed system of servers that caches and delivers web content from locations closest to the end user. Instead of every request traveling to a single origin server, a CDN serves copies from nearby edge nodes. This reduces latency, speeds up load times, and improves reliability.

Page load speed directly affects user engagement and search rankings. Flipbooks contain high-resolution images that can be slow to deliver from a single server, especially for a global audience. A CDN ensures that a reader in Tokyo and a reader in London both experience fast, consistent load times without buffering.

FlipLink serves all published flipbooks and documents through a CDN automatically. When a reader opens your publication, assets like page images, scripts, and fonts are delivered from the edge server nearest to their location. You do not need to configure anything; CDN delivery is built into every publication. This infrastructure also absorbs traffic spikes, so a flipbook that suddenly goes viral will not slow down or become unavailable. Combined with FlipLink's optimized rendering pipeline, CDN delivery keeps the [page experience](/features/page-experience-and-layout) fast worldwide.

A Dubai-based company shares a product catalog flipbook with distributors across Europe, Asia, and North America. Thanks to CDN delivery, a distributor in Frankfurt loads the first page in under two seconds, the same speed experienced by the team in Dubai, despite being thousands of kilometers from the origin server.