Technical Library

Engineering notes and implementation references

Concrete technical solutions and reproducible implementations for Next.js, React, SEO, performance, and architecture.

Stack-specific references for production-ready delivery — not strategy, not opinions, just how-to implementations.

Next.jsReactTypeScriptTechnical SEOCore Web VitalsPerformance
Technical Library overview

Categories

Structured as Architecture & Backend Engineering plus SEO & Performance Engineering.

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03 Feb 2026

How We Run a Core Web Vitals Audit: From Lighthouse Scores to Real-User Data

A real CWV audit starts with users, not tools. We combine field data, lab analysis, and architecture review to prioritize impact.

01 Feb 2026

JS/CSS Too Large: How Bundle Size Impacts Core Web Vitals - and SEO Indirectly

Semrush flags JS/CSS size as a performance signal. It is not a text issue, but it can hurt Core Web Vitals, UX, and SEO outcomes when left unchecked.