chapter.checkpoint
Production App Router
Pause here and make sure the main ideas feel clear before moving to the next chapter.
What you should understand now
Build secure, cache-aware routes with deliberate loading, error, and metadata behavior.
Caching, revalidation, and freshness
Understand caching, revalidation, and freshness through a focused practical example.
Loading, errors, and streaming
Understand loading, errors, and streaming through a focused practical example.
Metadata, images, fonts, and accessibility
Understand metadata, images, fonts, and accessibility through a focused practical example.
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Chapter progress
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Before you move on
Use this quick review if anything still feels unclear.
Complete the lessons, pass the exercises, and pass the quiz to unlock the next chapter.