Next.js Caching, Explained Without the Headache
Next.js caching has a reputation for being confusing. It stops being confusing the moment you realize there are exactly four caches and each answers one question.

Full-Stack Developer & SaaS Builder
Full-stack developer and solo founder from Varanasi, India. I build production-grade web apps, AI-powered SaaS products, and backend systems that handle real-world load.
Next.js caching has a reputation for being confusing. It stops being confusing the moment you realize there are exactly four caches and each answers one question.
FeaturedServer Components are not an optimization — they are a different mental model. Here is how to structure an App Router codebase that stays maintainable past 100 routes.
FeaturedStrict TypeScript is not about satisfying the compiler. It is about making illegal states unrepresentable. Here are the settings and patterns with the best bug-per-keystroke ratio.

SEO is not marketing voodoo. For developers, it is a spec you can implement: structured data, canonicals, sitemaps, and speed. Here is the whole checklist.
Node.js scales fine. What does not scale is a service written like a tutorial. These are the patterns that kept my backends alive when traffic showed up.
Lab scores lie. Field data pays. This is how I diagnose and fix LCP, INP, and CLS regressions using data from real users, not Lighthouse runs.