How to Scale a System from 0 to 10 million+ Users

The article walks through seven progressive stages of scaling a web system, starting from a single server handling 100 users up through architectures supporting 10 million or more, emphasising that teams should avoid over-engineering and instead scale incrementally in response to real bottlenecks. Early stages cover separating the database from the application server and adding caching, while later stages address read replicas, CDNs, message queues, and microservice decomposition.

Visit Original Article →