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Home > Shopify  > Building Blocks of High Performance Hydrogen-powered Storefronts

The future of commerce calls for dynamic, contextual, and personalized experiences. Hydrogen is a React-based framework that enables developers to craft unique storefronts that meet these demands. Powered by Hydrogen Shopify’s platform and APIs, this technology permits quick starts and fast build times, helping deliver the optimal shopping experience every time.

speed, convenience and cost.

Hydrogen is designed to deliver a lightning-quick UX. By utilizing streaming server-side rendering for initial load times and React Server Components for dynamic updates, customers are provided with a smooth and tailored shopping experience.
Hydrogen provides merchants with the ability to create completely individual, context-specific and ever-evolving retail experiences. This includes the option for them to:
Customize product recommendations based on each individual customer
Show items that are pertinent to the customer’s current situation.
Bring attention to items that the customer has previously checked out or purchased.
Hydrogen is designed to be easy-to-learn and user-friendly, leaning on the established React framework which experienced developers can immediately capitalize on. Hydrogen also equips coders with a comprehensive selection of tools and materials for creating fantastic storefronts.
provides detailed instructions that explain how to use the product. Such documentation is essential for user understanding and should be made available so users can get the maximum benefit from the product they are using.
is a great advantage. It is a substantial plus for any developer who is looking to build or maintain their software. With a supportive environment of likeminded individuals, developers can learn from each other and find solutions quickly.
A powerful array of software for developers is provided. This collection of tools is designed to equip creators with all the necessary resources they need to create their projects efficiently.
If you need a structure to create efficient, tailored, and agile storefronts, then Hydrogen is ideal.
Acknowledge the tension between fast loading via static generation and edge delivery, and personalization done client-side with a deferred display of critical content. Server-side rendering for React-powered storefronts allows for dynamic responses that, when done correctly, can result in better commerce and shopping experiences; however, achieving efficient streaming in this instance remains a difficult challenge to many developers. Smart server and client caching also come into play.

Hydrogen is specifically designed and optimized to provide customers with personalized, contextual, and dynamic commerce experiences. High-performance storefront data access that enables speedy server-side rendering is essential for this purpose. To ensure optimum user experience, we employ a variety of strategies working in synchronization.

This application uses React’s Suspense to provide a quick first render experience through streaming server-side rendering.

  • React Server Components provide efficient post-render updates for individual components, creating an optimised system.
  • A range of primitives is included which both fetch and store data, with intelligent default caches.
  • Flexible page and subrequest caching can be used to enable modern, efficient delivery from the edge.
  • Let’s dig deeper into these issues to gain a better understanding.

Streaming Server-side Rendering

For example, a product page may display content tailored to an individual buyer, such as localized product descriptions and pricing, recommendations based on purchase and browsing history, a customized CTA or promotional banner, and a multivariate A/B test allocation.

Client-side approaches can result in a speedy display of a blank product page skeleton, but numerous browser-initiated requests would be necessary to obtain and render the content.

Streaming SSR solves this problem by streaming the HTML for a page to the browser as it is generated on the server. By doing so, the browser can begin rendering the page before the entire HTML is generated, resulting in a faster loading time and a better user experience.

In web applications that require dynamic content or personalized experiences, streaming SSR is a powerful technique that can improve performance and user experience.

Streaming SSR offers the following benefits:

  • As the browser can start rendering the page before the entire HTML has been generated, Streaming SSR can significantly reduce loading times.
  • A better user experience: By reducing the amount of time users have to wait for pages to load, streaming SSR can provide a better user experience.
  • A streamed SSR can improve SEO by making pages more search engine-friendly.


The client-side rendering (CSR) approach usually causes a noticeable delay with crucial page content—in other words, slow LCP. As a viable solution, server-side rendering (SSR) can be used instead—fetching the data on the server and including it in the response—which helps reduce RTTs and quickens both first and largest contentful paints. The downside of this strategy is a sluggish time-to-first-byte (TTFB) because the server becomes stuck on data retrieval. This scenario is exactly where streaming SSR optimization comes in handy.

Fast TTFB prevents the browser from having to wait for server-side data fetching to complete before displaying the HTML page shell. Compared to conventional SSR, where the browser is blocked until all required queries are processed.

Server-side data fetches are resolved and streamed within the HTML response, and React progressively hydrates the components’ state without client round trips or hindering rendering of the entire component tree. This enables individual components to demonstrate personalised loading states while the page is being streamed and built by the browser.

The streaming and progressive hydration and rendering of an application ensures quick TTFB, while putting an end to the client-side waterfall associated with CSR—making it a great solution for dynamic, high-performance eCommerce.