Hello @erickeloi ,
It seems like you’ve set up a robust architecture for serving static content with Google Cloud CDN. However, the unexpected increase in costs associated with cache egress might indicate some misconfiguration or inefficiency in your setup.
I will also suggest you to check Review Cache Hit Ratio, Optimize Cache-Control Headers, Review CDN Cache Invalidation, Check Request Patterns, Consider CDN Pricing Tiers and Cost Monitoring and Optimization.