Eliminating Render-Blocking CSS & Optimizing Critical Rendering Path
A surgical method to inline critical path CSS and defer secondary stylesheets, slashing First Contentful Paint (FCP) below 800ms.
📂 Topic Hub • 4 Runbooks
Core Web Vitals Runbooks
Practical engineering runbooks, terminal benchmarks, and code fixes categorized under Core Web Vitals.
6 min read
Fixing Interaction to Next Paint (INP) Delays Caused by Third-Party Scripts
How bloated marketing tags, hotjar heatmaps, and chat widgets locked up the browser main thread for 620ms on mobile button clicks, and how web worker offloading restored a sub-50ms green INP score.
Eliminating 3,400+ DOM Nodes on WooCommerce: The 60-FPS Mobile Checklist
A practical breakdown of how unpruned page builder wrappers, mega-menus, and redundant SVG icons pushed an online store's DOM to 3,400 nodes, and how pruning it to 640 nodes restored instant mobile scroll responsiveness.
Fixing TTFB > 2.5s on High-Traffic LiteSpeed Servers: Root Cause & Implementation
A forensic teardown of why a UK e-commerce store suffered 2,800ms server response times despite paying for premium hosting, and how a 3-step configuration surgical fix brought it down to 42ms.