LCP
Largest Contentful Paint
14.3s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Defer Non-Critical CSS Loading
How to optimize uat.revv.ekbana.net
Defer Non-Critical CSS Loading
Medium Impact+12 points estimated
Why It Matters
Render-blocking CSS files delay first paint by 2 seconds, particularly the 29KB main stylesheet.
How to Fix
Split critical above-the-fold CSS using Next.js CSS-in-JS or extract critical styles inline. Use next/dynamic with ssr: false for non-critical components. Implement CSS code splitting by loading route-specific styles asynchronously.
0Poor
What This Score Means
A score of 37 falls in the "Poor" 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
354ms
Needs Improvement
Good: < 200ms
Measures how quickly the page responds to user interactions
CLS
Cumulative Layout Shift
0.26
Poor
Good: < 0.1
Measures visual stability - how much content shifts during page load
AI Performance Analysis
This Next.js/React website has severe performance issues with a score of only 37/100. The biggest problem is an extremely slow Largest Contentful Paint of 14.3 seconds, caused primarily by excessive unused JavaScript (725 KiB of wasted code) and render-blocking CSS files that delay initial page rendering by nearly 2 seconds. The site also suffers from significant layout shifts as images load without proper sizing, creating a jarring user experience. Removing unused JavaScript, optimizing CSS delivery, and properly sizing images could dramatically improve the score by 30+ points and reduce load times by over 10 seconds.
Other Optimization Recommendations
Remove Unused JavaScript Bundles
High Impact+25 points estimatedWhy It Matters:
725 KiB of unused JavaScript is delaying LCP by 3.6 seconds and blocking user interactions.
How to Fix:
Use Next.js bundle analyzer to identify unused vendor chunks. Implement dynamic imports for heavy libraries like the 99% unused vendors-9a8ad48e chunk. Configure webpack to split bundles by route and load components only when needed.
Fix Layout Shift from Unsized Images
High Impact+15 points estimatedWhy It Matters:
CLS score of 0.258 primarily caused by images without explicit dimensions shifting page layout.
How to Fix:
Add explicit width and height props to all Next.js Image components, especially the Dunlop logo causing major shifts. Use Next.js Image component's fill prop with proper aspect ratio containers. Reserve space for dynamically loaded content with CSS min-height.
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Related Performance Analyses
More Next.js Speed Tests
Next.js Performance Resources
Fix Layout Shifts from Images
Unsized images are causing 0.258 CLS score, making content jump and hurting user experience.
Eliminate Render-Blocking CSS Resources
CSS files are blocking page rendering for 1.9 seconds, severely delaying LCP by preventing content from appearing.
Fix Layout Shift from Unsized Images
CLS score of 0.258 primarily caused by images without explicit dimensions shifting page layout.
Remove Unused JavaScript Bundles
725 KiB of unused JavaScript is wasting 3.6 seconds of load time and blocking the main thread.