Pages that load in under 2 seconds see a bounce rate of 9%, while pages that take 5 seconds or more to load witness a bounce rate of 38%. Understanding both CSR and SSR regarding SEO is essential to know the best choice for your website.
Source: Growth Rocket
SSR (Server-Side Rendering) refers to rendering a web page on the server side and then sending the fully rendered HTML to the client’s web browser.
Source: Growth Rocket
Here are the primary use cases where CSR is the best for development practices.
Provide a more seamless and responsive user experience for dynamic interactions, such as form submissions, real-time updates, or user-specific content.
Faster and more efficient user experience for single-page applications (SPA) by avoiding full-page reloads.
Display user-specific content, such as personalized recommendations. The client’s browser requests and display the content without involving the server.
Here are the primary use cases where SSR is the best for development practices.
Send fully rendered HTML to the search engine crawler, making it easier to index the content.
Reduce the load on the client’s browser and allow for faster content rendering which is excellent for static content such as blogs or news websites.
Reduce load on the client’s browser for user authentication or data processing. Handling these tasks on the server side also increases security.
Users can navigate between your pages without making a roundtrip to the server. Fewer HTTP requests are made to the server since the same assets don’t have to be downloaded again for each page load.
Allow for a more dynamic and interactive user experience, which can improve user engagement and time on the site.
Implementing is easier for dynamic content, such as user-generated content, product listings, or custom content for different user segments.
Requires a more complex development process, including optimization techniques, to ensure that the content is accessible and crawlable by search engines.
Reduce the accessibility of the site, especially for users with disabilities who rely on assistive technologies that may not be able to interpret the dynamically generated content.
Generates a complete webpage on the server, which is then sent to the client, leading to a faster loading time for the user.
Easily crawl and index the HTML generated on the server, leading to improved visibility in search results.
Simpler development process, with less focus on optimization techniques, as the HTML is generated on the server and delivered to the client.
Complex applications may lead to a slower overall loading time for the user, as the server generates the HTML for each request.
Heavier load on the server, as it generates/delivers the HTML for each request, which isn’t feasible for large-scale applications with multiple users.
Doesn’t offer dynamic/interactive features, like real-time updates, user-generated content, or custom content for different user segments.
Requires a more complex deployment process. The server must be configured to handle the HTML generation and delivery, which may not be feasible for small-scale or low-budget projects.
Less scalable than client-side rendering since the server generates/delivers the HTML for each request, which can lead to performance impact as the number of users grows.
Overall, it’s important to weigh the pros and cons of server-side rendering and to choose the appropriate approach based on specific requirements.
|Initial Loading Time
|Overall Loading Time
|User Experience (UX)
|Load on Server
|Accessibility to Search Engines
|Supporting all Devices
|CSR (Client-side Rendering)
|SSR (Server-side Rendering)
SSR is the better approach for SEO as search engines can crawl the HTML content of the page more quickly.
SSR is generally more complex to implement and maintain.
In conclusion, there are pros and cons with either one. It really depends on what you’re trying to achieve with your website – factoring in the needs of your end users, your position on accessibility and your SEO strategy. As you develop your website you need to account for those and select the rendering that meets those needs and requirements.