Why is my Next.js app slow in production but fast locally?
Is Next.js 16 cache actually working with dynamic pages?
What’s the actual difference between Zustand and React Query?
What’s the actual difference between Redis cache and Next.js cache?
What’s the actual difference between React Query cache and Next.js cache?
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asked 4 weeks ago
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I’m trying to understand caching in modern React/Next.js apps, but I keep getting confused between:
A lot of tutorials explain them separately, but not how they work together in real applications.
For example:
I’ve seen some apps use both React Query and Next.js caching at the same time, which makes the architecture even more confusing.
What’s the real difference between them, and when should each one be used?
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They solve different problems.
Next.js cache is mainly for reducing server work:
React Query cache is mainly for improving client-side UX:
So basically:
That’s why many real apps use both together.
A common pattern is:
A big mistake is fetching the same data in both places unnecessarily. That usually creates duplicate requests and cache confusion.
