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Next.js soft 404: why notFound() returned 200 behind loading.tsx

Unknown slugs on my Next.js App Router site returned HTTP 200 with index and noindex tags. loading.tsx was the cause, dynamicParams = false the fix.

6 min readmohamedgado.hashnode.dev

1

Massvai Team4d ago

Next.js App Router: 7 Rules for cookies() and headers() Without Surprise Dynamic Routes

A practical guide to async cookies() and headers(), request-time rendering, caching boundaries, safe session handling, and testing App Router routes.

4 min readmassvainotes.hashnode.dev

Syed Muhammad AliSep 26

MUI v9 Theme Setup in Next.js 16: Full 2026 Guide

Learn the correct MUI v9 theme setup in Next.js 16 App Router — cache provider, custom theme, dark mode, and Google Fonts, step by step.

17 min readdevstacked.hashnode.dev

Syed Muhammad AliSep 20

Multi-Tenant Architecture in Next.js 16 (2026)

Learn to build multi-tenant SaaS apps in Next.js 16 — subdomain routing with proxy.ts, tenant data isolation, Postgres RLS, and Vercel wildcard domains.

29 min readdevstacked.hashnode.dev

1

Jayesh SojitraSep 11

Server Components vs Client Components (Next.js)

"Just add 'use client' to fix it" is the JavaScript equivalent of turning it off and on again — it works, but you've skipped understanding why it was broken.

4 min readjayesh-sojitra.hashnode.dev

Syed Muhammad AliSep 5

Next.js Adoption Benchmark 2026: The Data

An original 2026 Next.js adoption benchmark built from public npm, GitHub, and developer survey data — covering downloads, App Router use, and sentiment.

19 min readdevstacked.hashnode.dev

Syed Muhammad AliAug 31

Next.js Cache Components Migration Guide (2026)

Migrate to Next.js Cache Components — enable cacheComponents, replace revalidate/fetchCache with use cache and cacheLife, and fix Suspense errors.

23 min readdevstacked.hashnode.dev

Syed Muhammad AliAug 30

What Is Authentication? A Beginner's Guide (2026)

What is authentication? Learn how it works, the difference from authorization, common methods (sessions, JWT, OAuth/OIDC, passkeys), and how to implement it in Next.js.

15 min readdevstacked.hashnode.dev

Syed Muhammad AliAug 29

S3 vs Supabase Storage vs Cloudinary (2026 Guide)

Compare S3, Supabase Storage, and Cloudinary for Next.js apps — pricing, setup, image optimization, and which one to pick for your project in 2026.

23 min readdevstacked.hashnode.dev

Syed Muhammad AliAug 25

Auth.js vs Better Auth in 2026: Which Should You Use?

Compare Auth.js vs Better Auth for Next.js in 2026 - setup, features, passkeys, organizations, and migration tips to help you pick the right auth library.

18 min readdevstacked.hashnode.dev

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