Pattern 40 / INFRA
Use this when serving static content with low latency worldwide.
CDN (Content Delivery Network) fits when serving static content with low latency worldwide. Mechanism: cache assets at edge locations near users and fetch from origin on miss. Use it for images, scripts, downloads, video segments, and public static pages. The toll: cache invalidation, stale content, and dynamic personalization boundaries.
Images, scripts, downloads, video segments, and public static pages.
Global users download js bundles from the nearest edge pop.
Describe the pressure first, then the mechanism, then the cost. That keeps the design grounded.
Same pressure family