Content-Delivery-Network-diagram.excalidraw
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Content Delivery Network — Edge Topology and Origin Pull Diagram
Text Elements
User (US-East) ^user-us User (EU-West) ^user-eu User (Asia) ^user-asia Edge PoP US-East ^pop-us Edge PoP EU-West ^pop-eu Edge PoP Asia ^pop-asia Origin Server ^origin < 50ms (HIT) ^hit-fast < 50ms (HIT) ^hit-fast2 < 50ms (HIT) ^hit-fast3 cache miss → fetch ^miss-fetch Pull-based: edge fetches on miss ^pull-label Push-based: origin pre-warms edges ^push-label Invalidation: TTL + purge API; cache key = URL + Vary headers ^inv-note
Excalidraw Data
Text Elements
User (US-East) ^DpbXHLc1
User (EU-West) ^Gf1vrkJ5
User (Asia) ^Akywrkd3
Edge PoP US-East ^1HtQZS1n
Edge PoP EU-West ^Ub1QeVPM
Edge PoP Asia ^5pcQlXy0
Origin Server ^3XolJVvV
Pull-based: edge fetches on miss ^L4UuXwjl
Push-based: origin pre-warms edges ^B9rdZn7u
Invalidation: TTL + purge API; cache key = URL + Vary headers ^PagvTEU1
%%
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