LCP
Largest Contentful Paint
7.9s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Remove Unused JavaScript Code
How to optimize truck.liftutbildning.se
Remove Unused JavaScript Code
High Impact+12 points estimated
Why It Matters
116KB of unused JavaScript from Google Tag Manager scripts delays LCP by 350ms and FCP by 300ms.
How to Fix
Implement Google Tag Manager with Next.js gtag configuration to load only required tracking. Use next/script component with strategy='afterInteractive' for non-critical analytics. Remove unused tracking pixels and defer secondary scripts.
0Needs Improvement
What This Score Means
A score of 63 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
220ms
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 63/100, indicating significant issues that need attention. The biggest problem is extremely slow content loading, with the Largest Contentful Paint taking 7.9 seconds - far exceeding Google's recommended 2.5 seconds. The main culprits are oversized images that are much larger than their display dimensions (wasting 317 KiB), unused JavaScript from Google Analytics and tracking scripts (wasting 116 KiB), and render-blocking CSS files that delay initial page rendering. Optimizing image sizes, removing unused JavaScript code, and deferring non-critical resources could dramatically improve load times and boost the performance score by 25+ points.
Other Optimization Recommendations
Optimize Largest Contentful Paint Image
High Impact+15 points estimatedWhy It Matters:
The LCP image has 1.9 seconds of render delay and poor compression, directly impacting the 7.9s LCP score.
How to Fix:
Increase compression on the hero image (4210-900x600.webp) to save 54KB. Move the image to a CDN with better cache headers. Use Next.js Image component with priority prop and optimize=true for automatic optimization.
Eliminate Render Blocking CSS
Medium Impact+8 points estimatedWhy It Matters:
Two CSS files are blocking initial render, adding 150ms delay to First Contentful Paint.
How to Fix:
Use Next.js built-in CSS optimization by importing critical styles in _app.js. Move non-critical styles to load asynchronously using next/dynamic with ssr: false. Inline critical CSS for above-the-fold content in the document head.
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Related Performance Analyses
More Next.js Speed Tests
Next.js Performance Resources
Remove Unused Code and Modernize JavaScript
335 KiB of unused JavaScript and 57 KiB of legacy polyfills unnecessarily increase bundle size.
Implement Efficient Caching Strategy
Poor cache lifetimes waste 242 KiB on repeat visits, directly impacting LCP by 150ms.
Optimize Third-Party JavaScript Loading
Third-party scripts consume 2.2s execution time and block main thread with 1,055ms Total Blocking Time.
Fix Forced Reflow Issues
72ms of forced reflows are blocking the main thread and degrading user interaction responsiveness.