Chrome Browser Success Metrics: North Star, Funnel and Guardrails

You are a product manager on Google Chrome, Google's web browser for desktop computers and for Android and iOS devices. Describe the metrics you would track to judge whether Chrome is succeeding, and explain how those metrics fit together. ```hint Begin with why Chrome exists Chrome costs its users nothing, so pin down what it gives them and why Google funds it before naming any numbers; that tells you which signals mean real success and which could rise for the wrong reasons. ``` ### Clarifying Questions - Should the metrics cover Chrome on every platform, or one surface such as desktop, where people install Chrome in place of the browser that ships with Windows or macOS? - Is success judged for the people who use Chrome, for Google's business (for example, searches typed into Chrome's address bar), or for both? - Is this a standing health view for the whole Chrome product, or a way to judge a particular period or launch? ### What a Strong Answer Covers - A stated goal for Chrome that ties user value (fast, safe, dependable access to the web) to the reason Google invests in a free browser - One primary metric that reflects people choosing Chrome and coming back to it, rather than raw installs or copies that came preinstalled - Supporting metrics across adoption, activation, retention, speed, stability and safety, with the purpose of each explained - Guardrails that catch harmful ways of moving the primary metric, such as pushy default-browser prompts or a rise in privacy complaints - Segmentation by platform and market, and how the metrics connect from product quality to usage to value for Google ### Follow-up Questions - Weekly active users go up while the share of crash-free sessions goes down. How do you judge the quarter, and what do you check first? - Why could time spent in the browser be a misleading measure of Chrome's success? - How would you estimate Chrome's contribution to Google Search without crediting it with searches people would have made in another browser anyway?