What Is an Origin Server?
An origin server is the original, canonical host that holds the true version of a site content and application logic. A CDN fetches content from the origin and caches it at edges, returning to the origin only on a cache miss or for uncacheable requests. It is the single source of truth behind the distributed cache.
Why it matters
The origin defines correct content, so cache misses and dynamic requests all eventually reach it. Reducing how often edges must go back to the origin is central to both performance and origin load.
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