The main key difference between SPA (Single Page Application) and SSR (Server Side Rendering). (2024)

SPA (Single Page Application) and SSR (Server side rendering) are two different approaches to building any web application. Some of the main key differences are below.

• Development - SPA is easier to develop because the entire web application logic is on the client side. SSR required more server-side development and configuration.
• Architecture - SPA is the client-side application where the entire web application is loaded in the browser and all the interaction happens on the client side. On the Otherside SSR is the server-side rendering where the server generates HTML for the web page and sends it to the browser to render.
• Performance - SPA provides a better user experience to the user. It will load the application at once and Update the constant dynamically on user actions. It will reduce the amount of data requests between client and server. On the other hand, SSR initially faster Page load because HTML is generated by the server and sent to the browser.

• Security - SPA is the most vulnerable to Cross-site scripting (XSS) attacks due to most of the Application logic being executed on the client side. On the other hand, SSR is the safest because application logic is executed on the server side.
• SEO - SPA has poorer SEO compared to SSR because most Search engines struggle to index the Client-side rendered page. SSR Provides better SEO because the Server generates the HTML for the Web Application which can be easily crawled by search engines.
• Scalability - SPA is easier to scalable horizontally by adding more servers as per the requirement on the other hand SSR has more powerful servers due to Server-side render pages.

Recommended by LinkedIn

What is Web 3?

Bruce Turkel 1 year ago

Cross-Domain iFrames: Enabling Seamless Communication…

eInfochips (An Arrow Company) 1 year ago

10-steps-to-writing-and-developing-secure-applications

Akash Mahajan ☁︎ 6 years ago

See Also

How To Check Server Side Rendering - OhMyCrawl

Conclusion: SPA and SSR are both valid approaches for building web applications. Which one you need to choose will depend on the requirements of the application