The Renaissance of Server-Side Rendering: Embracing Performance, SEO, and Developer Experience
by Tomas Caraccia, CTO
The resurgence of server-side rendering (SSR) in web development, particularly in the context of JavaScript frameworks, has been a significant trend in recent years. Here's a summary of the key points from the top articles on this topic:
1- Revival of Server-Side Rendering: JavaScript frameworks, especially React, have popularized the concept of dynamic user interfaces. However, SSR capabilities are now being increasingly integrated into these frameworks. SSR, while not new, is being made more accessible to front-end developers through frameworks like Next.js. This approach not only speeds up content delivery to browsers but also divides the focus of front-end developers into those who specialize in UI/UX (like CSS and accessibility) and those who handle data fetching and API design.
2- Jamstack and Hybrid Rendering Patterns: The evolution of Jamstack sites, particularly with Next.js, has introduced a hybrid approach to web development. Pages on a Jamstack site can now be rendered using different patterns, like static generation for some pages and SSR for others. Next.js also introduced Incremental Static Regeneration (ISR), enabling on-demand generation of pages and caching for subsequent requests, thus resolving the issue of long build times for large sites.
3- The Return to SSR and the Role of Hydration: The shift towards SSR is primarily due to its fast initial load times and reduced client-side load. Modern practices involve serving a pre-rendered page to the client, which is then made fully interactive through a process called hydration. This approach balances the quick load times of SSR with the interactivity of client-side applications. The rise of frameworks like Next.js and Nuxt.js, which support SSR and client-side hydration, has been notable since around 2016.
4- Next.js and Developer Experience: Next.js, a framework built on top of React, has gained popularity for its SSR capabilities. It offers integrations with various code editors like Visual Studio Code, enhancing the developer experience with features like syntax highlighting and autocompletion. Next.js has also adopted Rust-based JavaScript tooling, leading to faster build times and improved application performance. The community around Next.js, led by Tim Neutkens, provides extensive support and resources for developers.
5- SEO Optimization and Performance: One of the critical advantages of SSR is its SEO friendliness. SSR frameworks deliver ready-to-go content to browsers, which is faster than client-side rendering and more easily indexed by search engines like Google. This results in better performance and higher rankings in search results. The preference for SSR in performance-oriented applications is evident in its growing adoption and the attention paid to application speed by developers using SSR frameworks.