
High-traffic Next.js applications often suffer from poor CDN cache hit rates due to how React Server Component payloads are hashed during client-side navigation. This guide uses real performance benchmarks to demonstrate fixes that dramatically improve edge caching efficiency.
When your Next.js build fails with "TypeError: Cannot read properties of null (reading 'auth')" on the \_not-found page, it's usually because your layout tries to access authentication context during static prerendering. Here's how to fix it properly.
Next.js Cache Components introduce a powerful static shell optimization, but they conflict with draftMode preview workflows. Learn how to conditionally bypass caching when editors need to preview unpublished content from your headless CMS.