Brock’s Performance was experiencing high Cumulative Layout Shift (CLS) on both their home and category pages, causing layout instability, while product pages suffered from slow Largest Contentful Paint (LCP). These issues not only hurt user experience but also drove up their cost per click in ad campaigns due to lower quality scores.
Case Studies—Web Design—Brocks Performance Speed Boost
Brocks Performance Speed Boost
Boosting Stability and Speed for Better Ad Performance
Impact
200% homepage CLS improvement; 180% category CLS improvement
By refactoring CSS, deferring scripts, and optimizing media, we improved home page CLS by 200% and category page CLS by 180%, which led to a 30% reduction in CPC ad costs.
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Overview
Brocks Performance
Optimized Brock’s Performance Core Web Vitals, boosting homepage CLS by 200% and category CLS by 180%, and cutting CPC ad costs by 30%.
The Challenge
Unstable Layout & Slow Paint
The Approach
Core Web Vitals Optimization
Layout Stabilization
- Refactored critical Cascading Style Sheets (CSS) to reserve space for images and fonts
- Deferred non-essential third-party scripts and ads
Load Time Improvements
- Implemented lazy-loading for below-the-fold media
- Preloaded hero images and key assets
- Optimized and compressed images for faster rendering
The Outcome
Dramatic CLS Gains & CPC Savings
- Homepage CLS improved by 200%
- Category Page CLS improved by 180%
- 30% reduction in cost per click for ad campaigns
These optimizations not only stabilized the user experience but also boosted ad Return on Investment (ROI) by improving quality scores.
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