You can invalidate what you control. Across a boundary you don’t own (a CDN, a client, a partner cache) invalidation becomes a request, not a command — which is why TTLs beat purges at the edge.
You can invalidate what you control. Across a boundary you don’t own (a CDN, a client, a partner cache) invalidation becomes a request, not a command — which is why TTLs beat purges at the edge.