Spring GDS 25th Anniversary
A logistics company that ships to 190 countries built something to ship to itself.
SSR (Server-Side Rendering)
What is server-side rendering?
Server-side rendering builds the HTML for a page on the server, for each request, and sends it to the browser fully formed. The user sees real content the moment it arrives, before any JavaScript has run. The page then hydrates: the JavaScript attaches and the static markup becomes a live, interactive app.
This is the counterpart to client-side rendering, where the browser receives a near-empty shell and assembles everything itself. SSR wins on two fronts that matter: the first meaningful paint is faster, and search engines and link previews see complete content instead of a blank page. The cost is server work on every request and the hydration step, which can feel sluggish if a page ships too much JavaScript. SSR also differs from static generation, where pages are built once ahead of time. SSR rebuilds per request, which is what you want for content that changes per user or per minute. A logged-in dashboard that greets you by name and shows your latest orders is rendered on the server so the data is correct the instant the page loads.
Frameworks like Next.js, Nuxt, and Remix made SSR mainstream by letting one codebase render on the server and run in the browser without a separate backend for views.
SSR at Dallonses
Most of the web work we ship leans on rendering choices made deliberately, route by route. A marketing page that has to rank gets server-rendered or statically generated. A deeply interactive internal tool might render on the client where SEO is irrelevant. We decide based on what the page is for, not on a framework default someone left in place. That judgment is the core of how we approach web development.
Hydration is where SSR projects quietly go wrong, so we watch it closely. Mismatches between server and client output, oversized bundles that delay interactivity, layout shifts that hurt Core Web Vitals. Our performance and SEO QA runs against the rendered output, not a developer's local machine, because that is what real users and crawlers actually receive.
Need pages that load fast and rank? Let's choose the right rendering strategy for each one.
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