WordPress monolith to Vercel: How Personio elevated performance and DX | Customers | Vercel

This post details Personio's migration from a monolithic WordPress site to a composable stack using Vercel, Next.js, and Contentful. It highlights significant improvements in Core Web Vitals (over 90% increase), particularly in Cumulative Layout Shift (CLS) and Largest Contentful Paint (LCP) (29% improvement on mobile). The migration also addressed technical debt, improved developer experience with features like Preview Deployments, and enhanced security through Vercel's hosting environment and Next.js capabilities.