LCP
Largest Contentful Paint
2.9s
Needs Improvement
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Eliminate Unused JavaScript Bundles
How to optimize quietmirror.me
Eliminate Unused JavaScript Bundles
High Impact+4 points estimated
Why It Matters
95KB of unused JavaScript is blocking page performance and delaying user interactions.
How to Fix
Use Next.js dynamic imports to code-split large chunks. Implement React.lazy() for components not needed on initial render. Configure webpack-bundle-analyzer to identify and remove dead code from your Next.js build process.
0Good
What This Score Means
A score of 93 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
197ms
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 Next.js site performs well with an excellent score of 93/100, but there are several optimization opportunities to achieve perfect performance. The biggest issue is excessive unused JavaScript, with 93 KB of unnecessary code being loaded (over 80% waste in key bundles), which contributes to a slower-than-ideal Speed Index of 3.6 seconds. Additional quick wins include optimizing a single oversized icon image that's being displayed at 24x24 pixels but loading at 192x192 (wasting 10KB), and addressing render-blocking CSS that's delaying initial page rendering. Implementing code splitting to reduce JavaScript bundle sizes and properly sizing images would likely push this site into the perfect performance range.
Other Optimization Recommendations
Fix Render Blocking CSS
High Impact+3 points estimatedWhy It Matters:
CSS file is blocking initial page render for 151ms and preventing faster visual content display.
How to Fix:
Move critical CSS inline using Next.js styled-jsx or CSS-in-JS solutions. Use Next.js dynamic imports for non-critical stylesheets. Configure next.config.js to split CSS bundles and defer non-essential styles.
Optimize Icon Image Delivery
Medium Impact+2 points estimatedWhy It Matters:
Your header icon is 10KB larger than needed and uses inefficient PNG format.
How to Fix:
Replace the 192x192 PNG icon with a properly sized 24x24 WebP version using Next.js Image component. Configure next.config.js to enable WebP format conversion. Use responsive image sizing with the Image component's sizes prop.
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Related Performance Analyses
More Next.js Speed Tests
Next.js Performance Resources
Optimize Icon Image Delivery
Your header icon is 10KB larger than needed and uses inefficient PNG format.
Fix Render Blocking CSS
CSS file is blocking initial page render for 151ms and preventing faster visual content display.
Convert Images to Modern Formats
PNG images can be reduced by 358KB using modern formats, improving perceived load speed.
Optimize Video Assets for Performance
Video files consume 10.6MB (83% of total payload) severely impacting load times and LCP.