North Star Metric

A north star metric is the single measure that best captures the core value your product delivers to customers — the number a whole company aligns behind. It sits between vanity metrics (signups) and lagging financials (revenue): ideally a leading indicator of retained value, like Airbnb's nights booked, or a messaging tool's "weekly active teams sending 2,000+ messages." A good north star is a proxy for customer value, not company extraction, so improving it tends to pull revenue up with it. Its purpose is focus: when every team can see how their work moves one number, prioritization arguments shrink. Pitfalls: picking a metric that's easy to game (raw signups), or so broad it can't guide decisions (revenue). Pair it with a small set of input metrics that teams can directly influence. For an early-stage builder, the exercise of choosing one forces clarity about what value you actually create — often more useful than the metric itself.