LCP
Largest Contentful Paint
77.0s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Eliminate Legacy JavaScript Polyfills
How to optimize igd.happythoughts.in
Eliminate Legacy JavaScript Polyfills
Medium Impact+8 points estimated
Why It Matters
Unnecessary polyfills add 14KB and delay LCP by 150ms for modern browsers.
How to Fix
Update your Next.js target in next.config.js to exclude legacy browsers (set browserslist to modern browsers only). Remove polyfills for Array.at, Object.hasOwn, and String.trim methods which are widely supported. Use differential serving to serve modern JS to capable browsers.
0Poor
What This Score Means
A score of 46 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
768ms
Poor
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 severe performance issues with a score of 46/100, indicating poor user experience. The biggest problem is an enormous 11MB JavaScript bundle that's 86% unused code, causing a catastrophic 77-second load time for the main content and making the page unresponsive for nearly 2 seconds. The site is loading far too much unnecessary JavaScript upfront - reducing this bundle size through code splitting, removing unused dependencies, and implementing lazy loading could dramatically improve performance by 50+ seconds and make the site actually usable for visitors.
Other Optimization Recommendations
Remove Unused JavaScript Code
High Impact+25 points estimatedWhy It Matters:
Unused JavaScript wastes 11MB of bandwidth and delays LCP by 55.8 seconds while blocking interactions.
How to Fix:
Use Next.js bundle analyzer to identify unused code in your chunks. Enable tree shaking in webpack config and remove unused dependencies. Split the massive 03j82jtbff3mp.js chunk using dynamic imports for route-based code splitting.
Optimize JavaScript Execution Performance
High Impact+18 points estimatedWhy It Matters:
JavaScript execution blocks the main thread for 2.8 seconds, creating a 770ms potential input delay.
How to Fix:
Break up long-running tasks by using React's concurrent features like startTransition. Move heavy computations to Web Workers. Implement code splitting at component level using React.lazy() and Suspense for non-critical features.
Keep Your Site Fast After Optimization
Once your site is optimized, maintain that speed. Use DeployHQ for zero-downtime, automated deployments—so performance fixes and updates go live safely every time, without breaking your site.
Explore DeployHQ →Trusted by engineering teams shipping high-performance sites
Want to Analyze YOUR Website?
Get AI-powered performance insights with actionable fixes in 30 seconds
Related Performance Analyses
More Next.js Speed Tests
Next.js Performance Resources
Optimize CSS Delivery Strategy
Render-blocking CSS delays First Contentful Paint by 900ms, preventing users from seeing content quickly.
Eliminate Page Redirects Chain
Redirects add 780ms delay and directly impact LCP by 800ms, creating unnecessary network round trips.
Reduce Unused JavaScript Bundles
445KB of unused JavaScript increases Time to Interactive to 11.9 seconds, severely impacting user experience.
Optimize Render-Blocking CSS
CSS files are blocking initial render for 940ms, delaying both LCP and FCP by 950ms each.