Topic Hub · 5 Articles
Web Performance & Core Web Vitals
engineering guides.
Real-world case studies and technical strategies for achieving 99+ PageSpeed scores, sub-second LCP, zero layout shifts, and asset optimization.
Our Technical SEO Overhaul: 162 Schema Blocks & 99 PageSpeed
How we overhauled Klickspell's technical SEO: nested Schema.org entity graphs, a 99 mobile PageSpeed score, canonical integrity, WCAG AA and llms.txt.
How to Find and Remove Zombie Shopify App Code (The Hidden Speed Killer)
Uninstalling an app from the Shopify Admin does not remove its code. Learn how to locate, audit, and safely purge orphaned liquid snippets, dead network requests, and zombie JavaScript to boost mobile store speed.
How We Achieved a 99 PageSpeed Score: A Real-World Web Performance Case Study
How we optimized Klickspell from the low 70s to a 99/100 PageSpeed score on desktop and 98/100 on mobile, covering WebP conversion, CSS inlining, self-hosted variable fonts, and eliminating forced reflows.
The 2026 Shopify App Bloat Benchmark: How 25 Top Apps Impact Mobile Core Web Vitals
We benchmarked 25 of the most popular Shopify apps across 7 categories to measure their real-world impact on JavaScript weight, main-thread CPU blocking time, and mobile conversion rates.
Re-rendering in React: Context API vs. Zustand Performance Comparison
A deep architectural breakdown of React re-rendering mechanics, explaining why React Context triggers unnecessary component renders and how Zustand solves it with selector-based state.