This document provides strategies for startup scalability. It discusses measuring key metrics, choosing between performance, availability and scalability, scaling vertically or horizontally, partitioning data, balancing workloads, hiring the right team, and outsourcing scalability to the cloud. The key takeaways are to focus on scalability from the start, scale horizontally, go asynchronous, choose consistency or availability depending on needs, measure and address utilization before performance, and invest in the right infrastructure and skills.