The Coderr Next.js & Vercel Performance Playbook

# Next.js & Vercel Performance Playbook

Why do some Next.js apps feel instant while others lag? Here's the exact checklist we use for high-traffic launches.

## 1. Architecture

- Adopt the App Router with React Server Components

- Use ISR or edge rendering for content-heavy routes

## 2. Delivery

- Lean on Vercel Edge Config for feature flags

- Ship cache headers per route and invalidate via deployments

## 3. Observability

- Stream Web Vitals to Analytics + LogRocket

- Alert the team whenever LCP > 2500 ms

Follow this playbook and your Lighthouse, PSI, and Pingdom scores stay in the green.