LCP
Largest Contentful Paint
6.5s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Reduce JavaScript Bundle Size
How to optimize descomplica.com.br
Reduce JavaScript Bundle Size
High Impact+25 points estimated
Why It Matters
399 KiB of unused JavaScript and 3.3s of main thread blocking time severely impact Time to Interactive (19.9s) and user experience.
How to Fix
Implement Next.js dynamic imports for non-critical components using next/dynamic. Remove duplicate Google Tag Manager instances (3 similar scripts loading). Use webpack-bundle-analyzer to identify and eliminate unused code from your Next.js bundles.
0Poor
What This Score Means
A score of 41 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
186ms
Good
Good: < 200ms
Measures how quickly the page responds to user interactions
CLS
Cumulative Layout Shift
0.30
Poor
Good: < 0.1
Measures visual stability - how much content shifts during page load
AI Performance Analysis
This Next.js site has severe performance issues with a poor score of 41/100. The biggest problem is excessive JavaScript blocking the main thread for over 3 seconds, causing the page to take nearly 20 seconds to become fully interactive. The site loads 399KB of unused JavaScript from Google Analytics and other third-party scripts, while also suffering from major layout shifts (0.302 CLS score) that make content jump around as it loads. Reducing JavaScript payloads, removing unused code, and fixing layout shifts by adding proper image dimensions could dramatically improve load times and user experience.
Other Optimization Recommendations
Fix Hero Section Layout Shifts
High Impact+20 points estimatedWhy It Matters:
The main hero section causes 0.288 CLS score due to content shifting during load, representing 95% of total layout shift issues.
How to Fix:
Add explicit width and height attributes to all images in the hero section. Use CSS aspect-ratio or min-height to reserve space for dynamic content. Implement Next.js Image component with priority={true} for above-the-fold images to prevent shifts.
Optimize Font Loading Strategy
Medium Impact+8 points estimatedWhy It Matters:
Font display issues cause 30ms delay to First Contentful Paint and contribute to layout shifts during text rendering.
How to Fix:
Add font-display: swap to your custom Aprova-Black font CSS declaration. Implement font metric overrides in your Next.js _document.js to match fallback fonts. Preload critical fonts using Next.js Head component with rel='preload'.
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Related Performance Analyses
More Next.js Speed Tests
Next.js Performance Resources
Optimize Font Loading Strategy
Font display issues cause 30ms delay to First Contentful Paint and contribute to layout shifts during text rendering.
Fix Hero Section Layout Shifts
The main hero section causes 0.288 CLS score due to content shifting during load, representing 95% of total layout shift issues.
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.