
Engineering Sub-200ms INP for a Next.js Storefront: A Worked Performance Case Study
Follow a realistic product-page performance investigation from a slow variant selector to measurable, resilient interaction design.
By Stephen CohenPractical perspectives on loading, interaction stability and the engineering behind a dependable website.

Follow a realistic product-page performance investigation from a slow variant selector to measurable, resilient interaction design.
By Stephen Cohen
A technical LCP walkthrough for image-heavy portfolio and agency sites, covering image discovery, responsive assets, server delays and browser traces.
By Stephen Cohen
How to interpret LCP, INP, CLS and real user performance when assessing an ambitious website for development recognition.
By Stephen Cohen