LCP
Largest Contentful Paint
5.7s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Optimize Next.js Image Components Responsively
How to optimize learn.wowlearnings.org
Optimize Next.js Image Components Responsively
High Impact+12 points estimated
Why It Matters
Images are loading at 640x360 but displaying at 284x160, wasting 36KB and slowing LCP.
How to Fix
Update your Next.js Image components to use proper sizes prop: sizes='(max-width: 768px) 284px, 160px'. Configure responsive breakpoints in next.config.js deviceSizes array. Set quality to 85 instead of 75 to maintain visual quality at smaller sizes.
0Needs Improvement
What This Score Means
A score of 67 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
239ms
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/React site has poor performance with a score of 67/100, indicating significant user experience issues. The biggest problem is render-blocking CSS files that are delaying page rendering by 630ms and contributing to a slow Largest Contentful Paint of 5.7 seconds. The site is also loading 286KB of unused JavaScript code and has oversized images that could be optimized. Fixing the render-blocking resources by inlining critical CSS and removing unused JavaScript could improve the performance score by 15-20 points and make the page load noticeably faster for users.
Other Optimization Recommendations
Eliminate Render Blocking CSS Resources
High Impact+15 points estimatedWhy It Matters:
Two CSS files are blocking initial page render, delaying LCP and FCP by 650ms each.
How to Fix:
Inline critical CSS for above-the-fold content directly in your Next.js pages. Use next/dynamic with ssr: false for non-critical styles. Move the 29KB main CSS bundle (11e5lkdv_wiez.css) to load asynchronously after initial paint using media='print' onload technique.
Remove Unused JavaScript and Polyfills
Medium Impact+10 points estimatedWhy It Matters:
286KB of unused JavaScript is loaded, including unnecessary polyfills for modern browsers.
How to Fix:
Update your Next.js target to 'es2022' in next.config.js to avoid transpiling modern features. Use next-bundle-analyzer to identify unused code in chunks. Remove or lazy-load Google Analytics and defer to post-hydration using next/script with strategy='afterInteractive'.
Keep Your Site Fast After Optimization
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Related Performance Analyses
More Next.js Speed Tests
Next.js Performance Resources
Optimize Main Thread JavaScript Execution
2.0 seconds of JavaScript execution time blocks user interactions and increases Total Blocking Time by 150ms.
Reduce Unused JavaScript Bundle Size
284KB of unused JavaScript wastes bandwidth and delays LCP by 150ms while blocking the main thread.
Eliminate CSS Render Blocking Resources
Render-blocking CSS delays LCP by 600ms and FCP by 600ms, significantly impacting perceived load speed.
Optimize CSS Delivery Strategy
Analysis for seva.happythoughts.in