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January 1, 2026
8 min read

Scaling Next.js to 1M+ Users: Lessons from a Fintech Revolution

Scaling Next.js to 1M+ Users: Lessons from a Fintech Revolution

Introduction

Building for a million users isn't just about code; it's about architecture. When we launched the digital gold platform, we faced unique challenges: high-stakes transactions, real-time price updates, and strict KYC requirements.

1. The Power of Server-Side Rendering (SSR)

We leveraged Next.js SSR to ensure that users always saw the most up-to-date gold prices without waiting for client-side fetches. This improved our Time to Interactive (TTI) by 40%.

2. Caching Strategies with Redis

Using Upstash Redis (the same one we just set up for your contact form!), we cached frequently accessed data like user dashboard summaries and market trends.

3. Security First

We implemented end-to-end encryption for all sensitive payloads, ensuring that user data remained private from the browser to the database.

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