Largest Contentful Paint
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
How to optimize dev.happythoughts.in
Oversized images waste 126 KiB of bandwidth and slow down perceived performance on mobile devices.
Replace img tags with Next.js Image component which automatically generates responsive sizes. Configure next.config.js to optimize images from staging-cdn.happythoughts.in domain. Set appropriate sizes prop based on your 378px container width for mobile.
A score of 75 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.
Largest Contentful Paint
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Interaction to Next Paint
Good: < 200ms
Measures how quickly the page responds to user interactions
Cumulative Layout Shift
Good: < 0.1
Measures visual stability - how much content shifts during page load
This Next.js site has concerning performance issues with a score of 75/100, particularly affecting user experience metrics. The biggest problem is excessive unused JavaScript code, which is wasting 73 KB and delaying page interactivity by 450ms, while also contributing to a slow Largest Contentful Paint of 6.1 seconds. The site is also serving oversized images that are much larger than their display dimensions, wasting an additional 126 KB of bandwidth. Removing unused JavaScript through better code splitting, implementing responsive images, and addressing the render-blocking CSS could improve the performance score by 15-20 points and significantly speed up page loading.
Why It Matters:
73 KiB of unused JavaScript is delaying LCP by 450ms and blocking page interactivity.
How to Fix:
Configure Next.js bundle analyzer to identify unused chunks. Use dynamic imports for heavy components that aren't immediately needed. Enable tree shaking in your webpack config and review the 9da6db1e and 9204 chunks for dead code elimination.
Why It Matters:
Critical CSS file blocks first paint by 160ms, directly impacting both LCP and FCP metrics.
How to Fix:
Extract critical CSS using Next.js built-in CSS optimization or tools like critical package. Inline critical styles in the document head and defer non-critical CSS. Consider splitting your CSS bundle to load only necessary styles for above-the-fold content first.
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.
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More Next.js Speed Tests
18 KiB of legacy JavaScript polyfills are unnecessary for modern browsers and slow down parsing.
The LCP image takes 3.9 seconds to load due to missing priority optimization.
Element render delay of 3.8 seconds is blocking LCP and causing the 6-second load time.
3.2 seconds of main thread work creates 690ms Total Blocking Time, preventing user interactions.