Understanding Rendering Methods SSR, CSR, SSG, ISR in NextJS
Introduction NextJS provides multiple flexible rendering methods, helping optimize performance and SEO for web applications. Below is an introduction to these methods along with their main advantages: Server-Side Rendering (SSR): Data is fetched and rendered into complete HTML on the server for each request. This HTML is then sent to the client. Better for SEO, faster First Contentful Paint (FCP) on the client, suitable for frequently changing data. Client-Side Rendering (CSR): The browser downloads a blank HTML file and a JavaScript file. JavaScript then runs on the client to fetch data and render the content. Smooth user experience after the first load, reduces server load, suitable for pages requiring high interactivity and data that does not need SEO. Static Site Generation (SSG): HTML is pre-rendered at build time (when running the next build command). These static HTML files are served for every request. Extremely high performance, fastest response time, excellent SEO, low server...