Why Your Next B2B Portal Should Be on Next.js (Not Just React)

The Problem with "Pure" React

React revolutionized development, but it has a fundamental problem for business: it is Client-Side Rendering (CSR). This means when a user (or Google bot) visits the site, they see... a white screen. The browser must download a huge JS file, execute it, and only then show content.

Consequences:

• Poor SEO (Google sees an empty page).

• Slow loading on mobile (low conversion).

• Dependence on the user's device power.

Solution: Next.js and Server-Side Rendering (SSR)

Next.js moves the heavy lifting from the user's phone to a powerful server. The page arrives in the browser already ready (HTML), like in the "good old days," but remains interactive like a modern app.

Arguments "For" CTOs and Product Owners

1. SEO Out of the Box

Search engines love static HTML. Our Next.js projects are indexed instantly and rank high without extra effort.

2. Loading Speed (Core Web Vitals)

Next.js automatically optimizes images (next/image), fonts, and scripts. We consistently achieve 90-100 points in Google PageSpeed Insights. In E-commerce, every 100ms delay costs 1% of revenue.

3. Security

API keys and database logic remain on the server (Server Actions). This is safer than storing logic on the client.

When NOT to Use Next.js?

If you are building a complex "internal-only" admin panel (intranet) where SEO is not needed at all, and interactivity is sky-high (like in Figma) — pure React (Vite) might be easier to support. But for 95% of public services, marketplaces, and SaaS — Next.js is the unrivaled standard in 2026.