Next.js Proxy Replaces Middleware: What Changes in Practice
Next.js Proxy replaces Middleware in v16. See what changed, how to migrate to proxy.ts, and when request‑time interception still belongs in production.
Articles
Guides, page 4 of 22
The guides are the practical part of this archive: working explanations for a specific web development problem, written to show the decision as well as the answer. The subject varies, but the aim is consistent: enough context to use the technique sensibly rather than copy it blindly.
Next.js Proxy Replaces Middleware: What Changes in Practice. 
CMS Content Not Updating in Next.js. CMS Content Not Updating in Next.js
A production runbook for stale CMS content in Next.js, covering webhooks, route dependencies, ISR, cache boundaries, preview, and editor trust.
Dynamic Programming in LeetCode: Solving 'Coin Change'. Dynamic Programming in LeetCode: Solving 'Coin Change'
How to solve LeetCode Coin Change with dynamic programming, and why the obvious greedy approach fails on exactly the cases worth understanding in interviews.
LeetCode: Finding the Diameter of a Binary Tree. LeetCode: Finding the Diameter of a Binary Tree
The diameter of a binary tree is the longest path between any two nodes. I'll explain clearly how we can solve this problem using recursion in JavaScript.
Headless CMS SEO Controls Checklist. Headless CMS SEO Controls Checklist
A headless CMS SEO checklist covering metadata, canonicals, schema, redirects, sitemaps, preview, internal links, image fields, and publishing controls.
Topological Sort: Solving the 'Course Schedule' Problem. Topological Sort: Solving the 'Course Schedule' Problem
How to solve Course Schedule with topological sort in TypeScript, comparing Kahn's algorithm with DFS cycle detection and why in‑degrees read clearly.
Technical SEO Launch Criteria for a Next.js Migration. Technical SEO Launch Criteria for a Next.js Migration
Technical SEO launch criteria for Next.js migrations, covering URLs, redirects, canonicals, metadata, rendered HTML, schema, sitemaps, and recovery.
What GEO is, and Why It is Not Just SEO for AI. What GEO is, and Why It is Not Just SEO for AI
What GEO is, where it overlaps with SEO and AEO, and why crawlability, evidence, structure and practical judgement matter more than AI tricks.
Understanding the Module Pattern in JavaScript. Understanding the Module Pattern in JavaScript
The JavaScript module pattern explained through closures and private state, plus the architectural lessons it still teaches modern developers today.
How to Compare Rendered HTML Before and After a Migration. How to Compare Rendered HTML Before and After a Migration
Compare rendered HTML before and after a migration, checking headings, metadata, links, schema, body copy, media, crawl signals, and launch risk.
Multi‑Source BFS: Solving the 'Rotting Oranges' Problem. Multi‑Source BFS: Solving the 'Rotting Oranges' Problem
Solve Rotting Oranges with multi‑source BFS in TypeScript, treating each queue level as one minute and tracking fresh cells until spread completes.
Caching Across React, Next.js and Serverless Applications. Caching Across React, Next.js and Serverless Applications
Compare client‑side React caching, Next.js SSG, ISR and SSR caching, and Redis‑backed caches for reliable serverless data fetching and persistence.
Traffic Dropped After a WordPress to Next.js Migration: What to Check First. Traffic Dropped After a WordPress to Next.js Migration: What to Check First
How to diagnose traffic loss after a WordPress to Next.js migration by checking redirects, rendered HTML, metadata, canonicals, and tracking noise.
Agentic Systems Do Not Fix Weak Service Boundaries. Agentic Systems Do Not Fix Weak Service Boundaries
Agentic systems do not replace service design. They expose weak contracts, permissions, observability, retries, state ownership, and workflow boundaries.
WordPress to Next.js Migration Checklist for Content, Preview and SEO. WordPress to Next.js Migration Checklist for Content, Preview and SEO
A WordPress to Next.js migration checklist for URLs, content models, media, preview, redirects, metadata, schema, sitemaps, SEO, and launch checks.
Quickselect in TypeScript: Solving 'Kth Largest Element in an Array'. Quickselect in TypeScript: Solving 'Kth Largest Element in an Array'
Solve Kth Largest Element in an Array with Quickselect in TypeScript, comparing sorting, heaps, partitioning, random pivots, and trade‑offs under pressure.
Practical Use Cases for JavaScript Set and Map. Practical Use Cases for JavaScript
SetandMapJavaScript's
SetandMapsimplify common tasks like managing unique values or key‑value pairs. Here, I'll share practical examples for everyday development.
Next.js Sitemap, Robots, and Crawlability Debugging Checklist. Next.js Sitemap, Robots, and Crawlability Debugging Checklist
A Next.js crawlability checklist for debugging sitemaps, robots.txt, canonicals, route generation, redirects, staging leaks, missing pages, and indexation.