flowchart LR C["<b>Client</b><br/>the visualisation page<br/><code>demo-cdn.putnode.com</code><br/><i>a different host - survives the outage</i>"] F["<b>Fastly POP</b><br/>nearest is Singapore<br/><b>cache HIT - origin not asked</b>"] H["<b>Hosting Việt Nam</b><br/>Apache<br/><i>both domains land here</i>"] C -- "test-fastly.putnode.com" --> F F -- "only on a miss" --> H C -- "test-origin.putnode.com<br/>every request reaches the origin" --> H classDef client fill:transparent,stroke-width:2.5px,color:inherit classDef pop fill:transparent,stroke-width:3px,color:inherit classDef host fill:transparent,stroke-width:2.5px,color:inherit class C client class F pop class H host