Server-Side Rendering (SSR) in Web Development

Giacomo Voß
3 min readMar 18, 2023

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Photo by Rodion Kutsaiev on Unsplash

As web applications have evolved, so have the ways in which we build and serve them. One of the more recent trends in web development is Server-Side Rendering (SSR), which allows web pages to be rendered on the server rather than the client’s browser. In this article, we’ll cover what SSR is, its advantages and disadvantages, and when to use it.

What is Server-Side Rendering?

Traditionally, web applications have relied on client-side rendering (CSR) to display content. In this approach, the client’s browser retrieves a minimal HTML file and then makes additional requests to the server for data and resources, which are then used to dynamically generate the page. This approach works well for simple, single-page applications, but can become slow and resource-intensive for larger and more complex applications.

SSR, on the other hand, pre-renders the HTML on the server and sends it to the client’s browser as a complete page. This can improve performance and SEO, as the page can be indexed by search engines and displayed faster to the user.

Advantages of Server-Side Rendering

One of the main advantages of SSR is improved performance. By rendering the HTML on the server, the browser can display the page faster, as it doesn’t have to wait for additional requests to be made. This can lead to a better user experience and improved SEO, as faster-loading pages are more likely to be ranked higher by search engines.

SSR can also make web applications more accessible to users with slower or less reliable internet connections, as the server can handle much of the processing and rendering before sending the page to the client.

Another advantage of SSR is the ability to use more traditional web development tools and frameworks, such as Django or Ruby on Rails, which are optimized for server-side rendering.

Disadvantages of Server-Side Rendering

While SSR offers many benefits, it also has some disadvantages. One major drawback is increased complexity. SSR requires a more complex setup and deployment process, as well as more advanced knowledge of web development.

Another potential downside of SSR is increased server load. Because the server is responsible for rendering and serving the HTML, it can become more resource-intensive, particularly for applications with large user bases or heavy traffic.

When to Use Server-Side Rendering

So when should you use SSR? If you have a large, complex web application that requires dynamic content, SSR may be a good option. This is particularly true for applications that require fast load times or need to be indexed by search engines.

However, if you have a smaller, simpler application with static content, CSR may be a better option. CSR can be simpler to implement and maintain, and can be more efficient for applications that don’t require a lot of server-side processing.

In general, the decision to use SSR should be based on the specific needs of your application, as well as your team’s skills and experience with web development.

Conclusion

Server-Side Rendering can be a powerful tool for improving the performance and accessibility of web applications. By rendering HTML on the server, pages can load faster and be indexed by search engines, leading to a better user experience and improved SEO.

However, SSR also comes with increased complexity and server load, which may not be necessary for simpler applications. As with any technology, the decision to use SSR should be based on the specific needs of your application, as well as your team’s skills and experience with web development.

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