A deep dive into Largest Contentful Paint (LCP), Interaction to Next Paint (INP), and Cumulative Layout Shift (CLS) optimization strategies.
Why Speed Directly Impacts Revenue
Search engines explicitly penalize slow applications. More importantly, real users abandon websites that delay response beyond 2 seconds. Core Web Vitals measure the real-world user experience of loading speed, responsiveness, and visual stability.
Mastering Largest Contentful Paint (LCP)
LCP measures how fast the main hero content becomes visible. Optimize hero images by serving next-gen WebP/AVIF formats, setting priority loading tags, pre-connecting to image domains, and avoiding client-side layout rendering delays.
Tackling Interaction to Next Paint (INP)
INP replaced FID to assess overall UI responsiveness during user interactions. Eliminate long JavaScript main-thread blocking tasks by breaking work into micro-tasks, deferring non-critical scripts, and optimizing React event handlers.