The Performance Paradox: Choosing the Right Tools to Measure Core Web Vitals (And Why Your Users' Reality is More Than a Lab Test)
Improving Core Web Vitals requires a dual-lens strategy. This guide clarifies the difference between 'Lab Data' for diagnosis and 'Field Data' (CrUX) for real-world validation, explaining why you need both. Learn how to use tools like Lighthouse and GSC effectively, and how predictive prefetching bridges the gap between lab scores and actual user experience.




