Next.js
Practical Next.js App Router knowledge — SSR, i18n, build optimization, and deployment guides for real-world projects.
SSR & Core
Server Components, SSR, and Hydration Error — the fundamentals of App Router.
Next.js SSR Guide: What Changed with Server Components
How SSR works in App Router with Server Components. Practical patterns for data fetching, caching, and streaming in Next.js 16.
Mar 2, 2026 · updated Mar 27, 2026 · 12 minFix Next.js Hydration Errors
Complete guide to diagnosing and fixing Next.js hydration errors: all 4 common patterns with bad/good code examples and debugging tips.
Feb 27, 2026 · updated Mar 27, 2026 · 16 minWhy SSR Isn't Working in Next.js App Router (And How to Fix It)
Data not updating, pages cached when they shouldn't be — common App Router SSR issues explained with concrete fixes.
Mar 2, 2026 · updated Mar 27, 2026 · 10 minHow I Cut Next.js App Router TTFB from 1s to 100ms
32blog's TTFB dropped from 1260ms to 100ms after removing one dynamic API call from root layout. How headers() silently forces dynamic rendering across every route in Next.js App Router — and the canonical fix.
Apr 13, 2026 · 10 mini18n & Features
Internationalization with next-intl and feature implementations like GA4 integration.
Complete Guide to Next.js i18n with next-intl
How to set up next-intl v4 with App Router for multilingual sites. Full walkthrough of the ja/en/es setup powering 32blog.com.
Mar 2, 2026 · updated Mar 27, 2026 · 10 minnext-intl Pitfalls: What Caught Me Building a Multilingual Site
Real pitfalls from implementing next-intl v4 on 32blog.com — middleware config, dynamic routes, SEO, and subtle bugs that are hard to spot.
Mar 2, 2026 · updated Mar 27, 2026 · 10 minBuild a Popular Posts Ranking with GA4 API in Next.js
Learn how to call the Google Analytics 4 Data API from Next.js App Router to build a page-view-based popular posts ranking with ISR caching, step by step.
Mar 5, 2026 · updated Mar 27, 2026 · 11 minHow to Build a Like Button with Next.js and Upstash Redis
Step-by-step implementation of a like button using Next.js App Router and Upstash Redis, plus the cost lessons learned from running it on Vercel's usage-based billing.
Mar 10, 2026 · updated Mar 27, 2026 · 10 minBuild, Deploy & Operations
Build optimization, deployment error fixes, and AdSense protection.
Next.js Build Optimization: Complete Guide
Practical techniques to cut Next.js build times and bundle sizes — based on real changes made to 32blog.com.
Mar 2, 2026 · updated Mar 27, 2026 · 11 minVercel Deployment Errors: Complete Fix Guide
Common Vercel deployment errors for Next.js and how to fix them — from build failures to Function Timeouts and memory issues.
Mar 2, 2026 · updated Mar 27, 2026 · 13 minBuild an AdSense Click Fraud Shield in Next.js
Build an AICP-equivalent AdSense click fraud protection system in Next.js. Covers blur+mouseenter detection, Upstash Redis tracking, and Discord alerting.
Mar 1, 2026 · updated Mar 27, 2026 · 11 min