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Popular topics:Web DevNext.jsFrontend
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Learn how to build complete Next.js 16 authentication with proxy.ts, JWT verification, role-based guards, and a three-layer security model. The auth guide every upgrade tutorial skips.
Practical Next.js performance optimization checklist. Learn the exact order to fix slow apps using modern caching, Turbopack, Server Components, and more. Stop guessing what to optimize first.
Stop guessing how Next.js caching works. This hands-on guide walks you through migrating to Next.js 16 Cache Components and the use cache directive — with real project code, before/after comparisons, the revalidateTag changes that will break your build, and every pitfall you'll actually hit.
Drop into your project and ship faster. No rewrites needed.
Next.js 16 role-based auth in one file. RBAC, auto token refresh, cross-tab sync, proxy-based route protection. Prevents common hydration errors, zero additional runtime dependencies.
Production caching utilities that make Next.js 16 caching production-safe. Type-safe tag registry, dual-invalidation for Server Actions, parallel prefetching, and Suspense boundary enforcement. One file, zero guessing.
A dev-only toolkit that instruments your 'use cache' functions with zero production cost. Catch cache misses, dynamic holes, missing tags, and deprecated invalidation calls. All output goes straight to your terminal.
Practical takes on building, shipping, and staying current as a developer.
Auth.js handed off active development to Better Auth. Next.js 16 renamed middleware.ts to proxy.ts. Most auth tutorials are now outdated. Here is an honest breakdown of all four paths — Auth.js v5, Clerk, Better Auth, and custom auth — with verified pricing, real CVE details, and a clear decision framework for what to actually use in 2026.
I reviewed 10 real Next.js applications and found the same 5 performance mistakes again and again. Here's what most developers get wrong and how to fix them fast.
A real Next.js performance optimization case study that cut load time by 72%. Discover the exact techniques, tools, and mindset shifts that most developers overlook, including caching strategies, bundle analysis, image optimization, and the use cache directive.
Put your knowledge to the test. Spot the gaps, fix them fast, and walk away confident in what you know.
Think you understand the App Router? Test your knowledge of Server Components, Client Components, routing conventions, layouts, data fetching, Suspense, Server Actions, and the mental model shift that trips up most developers making the switch.
Think you know the tools that make a Next.js app fast? Test your knowledge of bundle analysis, dynamic imports, Turbopack, the React Compiler, next/image, next/font, next/script, caching strategy, and the prioritization decisions that separate fast apps from slow ones.
Master the core concepts of JavaScript including data types, functions, scope, closures, and asynchronous programming with this comprehensive quiz.
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