We developed this site from scratch on a tight timeline and kept it fast long after launch, with green scores in PageSpeed Insights then and now, delivered as part of our WordPress optimization services.
Context & goals
The client decided to build late in the cycle, so we set a performance budget from day one and aimed to keep Core Web Vitals (LCP, INP, CLS) in the “good” range on mobile. Two years later, the site remains fast in real-world use.
Diagnostics
We validated performance with PageSpeed Insights (Lighthouse lab data) and CrUX field signals, plus GTmetrix waterfalls to spot render-blocking resources vs. server/TTFB delays — our standard workflow for Google PageSpeed optimization.
What we implemented
CSS strategy
We kept CSS lean and structured, generated critical CSS, and minified production assets. The goal: reduce render-blocking work, speed up first paint, and stabilize layout to protect CLS.
JavaScript strategy
Non-critical scripts load with defer/async, route-level code-splitting trims bundle size, and long tasks are broken up to improve interaction timing (INP). Third-party scripts are delayed until user intent.
Images
We served images in WebP/AVIF with JPEG fallback, used responsive srcset/sizes, set explicit width/height to prevent CLS, enabled native lazy-loading for below-the-fold media, and marked the hero with fetchpriority=”high” — an approach aligned with our mobile optimization for WordPress websites.
Theme & build choices
We started from a lightweight, accessible theme, avoided heavy page builders, and trimmed unused components. Fonts were optimized with preload for the primary family and font-display: swap.
Server, caching & CDN
The site launched fast out of the box. For resilience and global delivery, we later enabled lightweight page/browser caching, confirmed HTTP/2/3, OPcache, modern PHP, and added a CDN to keep TTFB and repeat views consistently quick.
Results
Such a result is difficult to achieve for existing sites on a ready-made theme, but such a result is the basis for sites that we make from scratch (or remake just with content transfer). As a result, two years later, the indicators of the WordPress website according to Google Pagespeed Insights are as follows:
Mobile
If you want to optimize an existing website or order the WordPress website development from scratch with great Google Pagespeed Insights, write to us.
