This document discusses how to prepare a website for holidays and major events by focusing on performance. It recommends taking a continuous improvement approach of analyzing site usage data, testing for performance issues, and monitoring site performance during events. Key steps include studying past events to understand customer impacts, projecting future usage, contingency planning, and building a feedback loop between development, product management, and engineering. The goal is to adopt a culture where performance is a key feature and the site is always being prepared through continuous delivery, instrumentation, and addressing issues before they affect customers.