#INP

A practical guide to Core Web Vitals — what LCP, INP, and CLS measure, the thresholds Google uses, how to read field vs lab data, and a prioritized plan to fix each one.

Interaction to Next Paint replaced First Input Delay as a Core Web Vital. If your site felt fast in 2023 and 'got slow' since, INP is probably why — and the fix is mostly about your main thread.