Performance
Core Web Vitals, rendering and the work that makes pages feel fast for real users.

INP in Practice: Finding Slow Interactions and Fixing Them
A hands-on guide to Interaction to Next Paint: how the metric works, how to find the exact interaction that hurts, and the fixes that actually move it.

Why Lighthouse and Your Real Users Disagree About Speed
Lab scores and field data measure different things. Why Lighthouse and CrUX disagree, which to trust for what, and how to use both without chasing ghosts.