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Stage 1 · Foundations

Edge & Caching

Why far servers feel fast, where edge rendering backfires, and how one cache expiry can take down an AI app.

You'll be able to: Explain latency, CDNs and cache failure modes, and pick the right fix.

0 of 3 done
  1. 1 Deep dive 7 min Failure mode + fix Why CDNs Make Far Servers Fast Light can't go faster, so a CDN makes the trips across the planet shorter and fewer.
  2. 2 60-sec Short 55 sec Failure mode + fix CDN Cache Stampede A CDN protects your expensive origin only while the cache is warm. When a hot key expires, collapse the misses into one fetch and serve stale content while it refreshes.
  3. 3 60-sec Short 56 sec Failure mode + fix Edge Rendering Trap Edge rendering is only fast when the data is at the edge too. If every render awaits a database and an LLM in one far-away region, render next to the data instead.
  4. Coming soonHow Load Balancers Pick a ServerAnnounced at the end of an episode in this track. Subscribe to catch it.
  5. Coming soonOrigin Shield explainedAnnounced at the end of an episode in this track. Subscribe to catch it.
  6. Coming soonPartial PrerenderingAnnounced at the end of an episode in this track. Subscribe to catch it.
Next stage LLM Apps: Caching & RAG