Next.js is a React framework that supports pre-rendering, allowing for faster and more consistent performance. It offers two main strategies for pre-rendering: Server-side Rendering (SSR) and Static Generation (SG). SSR pre-renders the page into HTML on the server on every request, while SG pre-renders the page into HTML at build time, globally caching it by a CDN to serve instantly. However, this approach can lead to stale data if not addressed. Incremental Static Generation allows for adding and updating pages incrementally after build time, overcoming these challenges. This approach enables using Static Generation for maximum performance without sacrificing Server-side Rendering benefits. Additionally, Next.js supports Client-side Fetching, which combines pre-rendering with fetching data on the client-side, enhancing performance and user experience. With its API Routes feature, Next.js also provides a secure way to write data back to external data sources. By leveraging these features, developers can create fast, scalable, and maintainable applications.