CDN caching for static and dynamic content
WHAT IT TESTS: CDN cache behavior and invalidation. OUTLINE: cache static assets with long TTLs and versioned filenames; bypass or short-cache dynamic per-user responses; invalidate via fingerprinted URLs not purges.
WHAT IT TESTS: practical CDN configuration for mixed content and a sound invalidation strategy. ANSWER OUTLINE: serve static assets with long TTLs and content-hashed filenames so they cache aggressively at the edge; for dynamic, user-specific API responses, bypass the cache or cache very briefly, and respect Cache-Control and Vary headers to avoid serving one user's data to another. For invalidation, prefer fingerprinted URLs that change on update over slow, global purges.
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- #cdn
- #caching
- #performance
- #invalidation
- #cloud
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