nuxt4-patterns

To fix hydration mismatches in Nuxt 4, implement hydration safety by moving non-deterministic logic into `onMounted()` or `.client.vue` components. This ensures the first server render is deterministic and matches client state.

The best way to fetch data safely during Nuxt 4 SSR is using `useFetch` and `useAsyncData`. These SSR-safe methods fetch data at build and render times to ensure hydration safety and improve SEO.

Configure route rules in Nuxt 4 by defining rendering strategies like SSR, caching, or client-side rendering for different routes. This optimizes hybrid rendering performance and SEO based on specific page requirements.

Yes, Nuxt 4 supports lazy loading techniques to reduce payload size and improve app responsiveness. This is often paired with route rules to balance server-side rendering for critical content and client-side hydration for non-critical parts.

Your Nuxt 4 app may have poor SEO and performance bottlenecks due to improper SSR data fetching and hydration mismatches. Resolving this requires implementing deterministic hydration, SSR-safe data fetching, and optimized route rules.