1. Centros de datos (al centro, azul oscuro)
2. Puntos de presencia (anillo intermedio azul claro)
3. Nodos de cacheo o nodos externos (Edge) (GGC = Google Global Cache)
![](https://pbs.twimg.com/media/D2w8hzQWwAAVhb-.png)
![](https://pbs.twimg.com/media/D2w9djYWkAIkHvB.png)
![](https://pbs.twimg.com/media/D2w_LxWWkAACPuF.png)
![](https://pbs.twimg.com/media/D2xCKV_WsAIBk32.jpg)
Imagen via @CNN_Oppmann
![](https://pbs.twimg.com/media/D2xEp5KXQAAje6I.jpg)
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