CDN — Edge Caching
DNS-routed CDN with regional edges and origin pull / push.
Rendering…
Make it your own.
flowchart LR
U[User] --> DNS[Anycast DNS]
DNS --> Edge[Nearest edge POP]
Edge -->|cache hit| U
Edge -->|cache miss| Mid[Regional cache]
Mid -->|miss| Origin[(Origin)]
Origin -->|fill| Mid
Mid -->|fill| Edge
Inv[Invalidation API] -.->|purge| Edge
Inv -.->|purge| Mid