Server-side rendering (SSR) is an application’s ability to convert HTML files on the server into a fully rendered HTML page for the client. The web browser submits a request for information from the server, which instantly responds by sending a fully rendered page to the client. Search engines can crawl and index content prior to delivery, which is beneficial for Search Engine Optimization purposes.
Some server-side rendering advantages include:
- A server-side rendered application enables pages to load faster, improving the user experience.
- When rendering server-side, search engines can easily index and crawl content because the content can be rendered before the page is loaded, which is ideal for SEO.
- Webpages are correctly indexed because web browsers prioritize web pages with faster load times.
- Rendering server-side helps efficiently load webpages for users with slow internet connection or outdated devices.
Server-side rendering disadvantages may include:
- Rendering server-side can be costly and resource-intensive as it is not the default for JavaScript websites, and the server takes on the full burden of rendering content for users and bots.
- While rendering static HTML server-side is efficient, rendering bigger, more complex applications server-side can increase load times due to the bottleneck.
- Server-side rendering may not be compatible with third-party JavaScript code.
- Rendering server-side may be ideal for static site generation, but frequent server requests and full page reloads can result in overall slower page rendering in more complex applications.
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