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LCP, INP and CLS are the metrics Google uses to judge real-world performance. This guide explains what each one measures and the concrete fixes that move the needle.

The questions I actually ask in frontend interviews, and what I am listening for in each answer — from layout behaviour to how a candidate handles a broken build.

The App Router and React Server Components are not just new APIs; they change where your code runs. Here is how they cut bundle size, simplified data fetching, and made my pages measurably faster.

The mental model behind the server/client boundary in modern React, with concrete examples of what belongs on each side — and what the next.js app router actually compiles.

Rolling updates, health checks and the careful order of flags — how to update a Docker Compose stack without dropping a single request.

Branching strategy is not the bottleneck, review quality is. Short-lived branches, atomic commits, protected main and automated checks take a five person team to twenty without the arguments.

The staged path from a slow WordPress site to a fast Next.js one, keeping Persian content, Persian URLs and search traffic intact.

Rates are not the lever. Public evidence, payment rails that survive Iranian residency, tight scopes, and scam avoidance are — a practical field guide to sustainable remote income.

Most teams use TypeScript as a linter and stop there. Generics that preserve your domain types, a short set of utility types, and the two compiler flags people skip are what turn the compiler into a refactoring tool.

A practical breakdown of browser page loading with actionable steps to improve performance and Core Web Vitals for better SEO and UX.