LCP
Largest Contentful Paint
5.7s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Optimize JavaScript Bundle Size
How to optimize ventaassets.com
Optimize JavaScript Bundle Size
Medium Impact+12 points estimated
Why It Matters
Unused JavaScript totals 579KB with heavy YouTube embeds causing 1.4 seconds of execution time and blocking user interactions.
How to Fix
Use Next.js dynamic imports to code-split YouTube components with const YouTubePlayer = dynamic(() => import('./YouTube'), {ssr: false}). Remove unused YouTube player features and implement facade loading for video thumbnails. Enable tree-shaking by reviewing webpack-bundle-analyzer output.
0Needs Improvement
What This Score Means
A score of 55 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
206ms
Needs Improvement
Good: < 200ms
Measures how quickly the page responds to user interactions
CLS
Cumulative Layout Shift
0.00
Good
Good: < 0.1
Measures visual stability - how much content shifts during page load
AI Performance Analysis
This Next.js site has poor performance with a score of 55/100. The biggest problem is an extremely slow server response time of 4.5 seconds, which is causing massive delays in your Largest Contentful Paint (5.7 seconds) and overall page loading. Additionally, the site has 579 KB of unused JavaScript from embedded YouTube players and CSS files that are blocking the initial render. Fixing the server response time alone could improve your Core Web Vitals by over 4 seconds, while removing unused code and optimizing the render-blocking resources could add another 800ms improvement, potentially boosting your performance score by 30+ points.
Other Optimization Recommendations
Fix Server Response Time
High Impact+25 points estimatedWhy It Matters:
Root document takes 4.46 seconds to respond, blocking all other resources and severely impacting LCP by 4.35 seconds.
How to Fix:
Optimize your Next.js server-side rendering by implementing ISR (Incremental Static Regeneration) for static content. Enable caching headers and consider using a CDN like Vercel or Cloudflare. Profile and optimize any slow database queries or API calls in your getServerSideProps or API routes.
Eliminate Render-Blocking CSS
High Impact+15 points estimatedWhy It Matters:
Three CSS files block initial rendering, delaying LCP and FCP by 800ms each.
How to Fix:
Inline critical CSS for above-the-fold content directly in your Next.js pages using styled-jsx or CSS-in-JS. Use Next.js dynamic imports for non-critical styles with {ssr: false}. Move large CSS files (33KB+ detected) to load after initial render using next/dynamic.
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Related Performance Analyses
More Next.js Speed Tests
Next.js Performance Resources
Reduce Unused JavaScript
70% of JavaScript (56KB) goes unused, wasting 300ms of LCP performance and increasing bundle size.
Fix Redirect Chain and Document Latency
HTTP redirects and slow document response add 950ms to both LCP and FCP, severely impacting Core Web Vitals.
Eliminate Render-Blocking CSS
Three CSS files block initial page rendering for 940ms, directly delaying LCP and FCP by nearly 1 second.
Fix Server Response Time
Root document takes 4.46 seconds to respond, blocking all other resources and severely impacting LCP by 4.35 seconds.