LCP
Largest Contentful Paint
1.9s
Good
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Remove Unused JavaScript Code
How to optimize powervit.fit
Remove Unused JavaScript Code
Medium Impact+2 points estimated
Why It Matters
The main client bundle contains 57% unused JavaScript (33KB), slowing down script parsing and execution.
How to Fix
Analyze the client.b23JQh9a.js bundle to identify unused code paths. Implement code splitting to defer non-critical JavaScript. Use tree shaking during build to eliminate dead code from your Astro bundle.
0Good
What This Score Means
A score of 99 falls in the "Good" 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
32ms
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 excellent performance with a score of 99/100, indicating it loads very quickly for users. The biggest remaining issue is oversized images that are being served at higher resolutions than needed, wasting about 66 KB of data - while this doesn't currently impact Core Web Vitals, properly sizing these category and product images could eliminate unnecessary bandwidth usage. The site also has some render-blocking CSS that delays the initial page paint by over 1 second, and about 32 KB of unused JavaScript code that could be removed or deferred. Despite these minor optimization opportunities, the site is already performing exceptionally well and provides users with a fast, smooth browsing experience.
Other Optimization Recommendations
Eliminate Render Blocking CSS
High Impact+8 points estimatedWhy It Matters:
CSS is blocking the critical rendering path and delaying First Contentful Paint by 1,050ms.
How to Fix:
Inline critical CSS for above-the-fold content directly in the HTML head. Use media queries to defer non-critical CSS loading. Consider splitting the large powervit-header.GYUUrWvp.css (16KB) into critical and non-critical parts.
Optimize Image Responsive Sizing
Medium Impact+3 points estimatedWhy It Matters:
Images are served at 960x960 but displayed at 564x564, wasting 66KB in unnecessary bytes.
How to Fix:
Update your image srcset to serve appropriately sized images for each breakpoint. Generate additional image variants at 564px width for desktop display. Ensure your image optimization pipeline creates sizes that match your CSS layout dimensions.
Keep Your Site Fast After Optimization
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Related Performance Analyses
More Generic Speed Tests
Generic Performance Resources
Eliminate Render-Blocking CSS
3 CSS files block page rendering for 2.2 seconds, delaying First Contentful Paint.
Fix Layout Shifts from Images
Unsized images cause a 0.401 CLS score as content jumps when images load.
Optimize LCP Image Discovery
Your LCP image is lazy-loaded and takes 10 seconds to load, severely impacting user experience.
Remove Unused JavaScript Code
Over 53% of your main JavaScript bundle (57KB) is unused, wasting 300ms of load time and impacting LCP.