LCP
Largest Contentful Paint
4.6s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Remove Unused JavaScript Code
How to optimize sombretela.com.br
Remove Unused JavaScript Code
High Impact+12 points estimated
Why It Matters
75KB of unused JavaScript is wasting 480ms of load time and delaying both FCP and LCP significantly.
How to Fix
Analyze your bundle with webpack-bundle-analyzer or similar tools to identify unused code. Implement code splitting to load only necessary JavaScript per page. Use tree-shaking to eliminate dead code from your build process. Consider lazy loading non-critical components.
0Needs Improvement
What This Score Means
A score of 71 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
133ms
Good
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 website has poor performance with a score of 71/100, primarily due to significant JavaScript and CSS loading issues. The biggest problem is that 43% of the JavaScript code (75KB) is unused and blocks page rendering, while the CSS file also blocks initial page display, together delaying your Largest Contentful Paint to a sluggish 4.6 seconds. Additionally, images could be optimized by converting to modern formats like WebP and properly sizing them, which would save an additional 300KB. Addressing the unused JavaScript and render-blocking resources first could improve loading times by nearly a full second and significantly boost your performance score.
Other Optimization Recommendations
Eliminate Render-Blocking CSS Resources
High Impact+15 points estimatedWhy It Matters:
CSS is blocking initial render and delaying LCP by 450ms, preventing users from seeing content immediately.
How to Fix:
Inline critical CSS directly in the HTML head for above-the-fold content. Load non-critical CSS asynchronously using media='print' then switching to 'all' onload. Consider using tools like Critical or PurgeCSS to identify essential styles.
Optimize Image Format and Sizing
Medium Impact+8 points estimatedWhy It Matters:
Images are 300KB larger than needed and using outdated formats, though not directly impacting LCP in this case.
How to Fix:
Convert JPEG images to WebP or AVIF format for 70% smaller file sizes. Resize images to match their display dimensions using responsive images with srcset. Implement proper compression settings (80-85% quality for photos).
Keep Your Site Fast After Optimization
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Related Performance Analyses
More Generic Speed Tests
Generic Performance Resources
Fix Layout Shifts from Images
Unsized images cause 0.13 CLS score with layout shifts primarily from the logo and hero image lacking explicit dimensions.
Remove Unused JavaScript Resources
732 KiB of unused JavaScript delays LCP by 3.6 seconds, with block-editor and components scripts being 80%+ unused.
Optimize Image Delivery and Size
The 1.4MB hero image causes 5.1 second resource load delay and significantly impacts LCP by appearing oversized at 6000x4000 for 570x380 display.
Reduce Render-Blocking Resources
CSS and JavaScript files are blocking initial page render for 3,090ms, significantly delaying First Contentful Paint.