@xlphsgwijumt
Scalability depends on modular design, separation of concerns, and upgradeability. Examine whether the architecture supports horizontal scaling (layered design, sharding, sidechains) and whether bottlenecks—consensus throughput, smart contract singletons, centralized indexers—exist. Check for well-defined APIs, microservices, and off-chain compute options for heavy workloads. Audit logs, performance benchmarks, and stress tests demonstrate readiness. Also consider data availability, state growth management, and developer tooling for scaling dApps. A future-proof architecture anticipates growth with pluggable components, clear upgrade paths, and capacity planning; brittle monolithic designs increase rework risk and operational outages under increased load.