LCP
Largest Contentful Paint
16.3s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Optimize Main Thread Processing
How to optimize cgbabyclub.co.uk
Optimize Main Thread Processing
High Impact+15 points estimated
Why It Matters
The main thread is blocked for 2.8 seconds by heavy script evaluation and layout calculations, creating poor user experience.
How to Fix
Break up long-running JavaScript tasks using setTimeout or requestIdleCallback. Reduce DOM queries that trigger forced reflows in site.js. Move heavy computations to Web Workers where possible to keep the main thread responsive.
0Needs Improvement
What This Score Means
A score of 53 falls in the "Needs Improvement" range (50-89). While it is better than poor (0-49), you should aim for 90+ to provide an optimal user experience and maximize SEO benefits.
This site is slower than approximately 35% of similar sites. The main issues affecting performance are image optimization, JavaScript execution time, and layout stability.
Addressing these issues could improve your conversion rate by 15-20% and boost your search engine rankings.
Core Web Vitals Analysis
INP
Interaction to Next Paint
221ms
Needs Improvement
Good: < 200ms
Measures how quickly the page responds to user interactions
CLS
Cumulative Layout Shift
0.01
Good
Good: < 0.1
Measures visual stability - how much content shifts during page load
AI Performance Analysis
This website has poor performance with a score of 53/100, primarily due to excessive JavaScript blocking the main thread for 2.8 seconds and an extremely slow Largest Contentful Paint of 16.3 seconds. The biggest issue is unused JavaScript code (476 KiB) from the main site.js file and Google Tag Manager, which is significantly delaying page interactivity and visual loading. Additionally, render-blocking CSS and JavaScript files are preventing the page from displaying content quickly, with an estimated 1.8 second improvement possible by deferring these resources. Reducing unused code, optimizing script loading, and implementing proper resource prioritization could dramatically improve this site's performance and user experience.
Other Optimization Recommendations
Eliminate Render Blocking Resources
High Impact+25 points estimatedWhy It Matters:
Critical CSS and JavaScript files are blocking initial page render, delaying both FCP and LCP by 1.8 seconds.
How to Fix:
Defer non-critical CSS by adding media='print' onload='this.media="all"' to stylesheets. Inline critical above-the-fold CSS directly in HTML. Move JavaScript execution after DOM content loads using defer or async attributes for non-essential scripts.
Remove Unused JavaScript Code
High Impact+20 points estimatedWhy It Matters:
476 KB of unused JavaScript is being downloaded, wasting 2.3 seconds of LCP time and blocking user interactions.
How to Fix:
Use webpack-bundle-analyzer or similar tools to identify dead code in site.js (278KB unused). Remove unused Google Tag Manager events and OneTrust features. Implement code splitting to load only necessary JavaScript per page.
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Related Performance Analyses
More Generic Speed Tests
Generic Performance Resources
Optimize Logo Image Delivery
The oversized logo image wastes 97 KiB and delays LCP by 450ms while being displayed much smaller than its actual size.
Remove Unused JavaScript Code
126 KiB of unused JavaScript from Google Analytics and GTM delays LCP by 900ms and wastes bandwidth.
Eliminate Render Blocking Resources
Render blocking CSS and fonts delay LCP and FCP by 1,050ms, preventing users from seeing content immediately.
Fix Image Sizing and Compression
Award images are oversized by 441KB and lack explicit dimensions, causing layout shifts.