LCP
Largest Contentful Paint
1.7s
Good
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Optimize JavaScript Task Splitting
How to optimize seoh.team
Optimize JavaScript Task Splitting
High Impact+15 points estimated
Why It Matters
The 190ms maximum FID indicates long JavaScript tasks are blocking user interactions and degrading responsiveness.
How to Fix
Break down large JavaScript bundles using Next.js dynamic imports with React.lazy(). Implement time-slicing for heavy computations using scheduler.postTask() or setTimeout. Use Next.js code splitting at the page level to reduce initial bundle size.
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
193ms
Good
Good: < 200ms
Measures how quickly the page responds to user interactions
CLS
Cumulative Layout Shift
0.01
Good
Good: < 0.1
Measures visual stability - how much content shifts during page load
AI Performance Analysis
This Next.js/React site performs exceptionally well with a near-perfect score of 99/100, indicating excellent user experience and fast loading times. The main area for improvement is reducing JavaScript execution time, as the site has a potential First Input Delay of 190ms, which could make the page feel slightly unresponsive when users try to interact with it immediately after loading. Additionally, the site is experiencing forced reflows that cause the browser to recalculate page layout unnecessarily, wasting 41ms of processing time. While these issues don't significantly impact the overall performance, optimizing JavaScript execution and eliminating the forced reflows could achieve a perfect score and ensure consistently smooth interactions for all users.
Other Optimization Recommendations
Eliminate Forced Reflow Operations
Medium Impact+8 points estimatedWhy It Matters:
41ms of forced reflow time is causing layout thrashing and degrading rendering performance.
How to Fix:
Batch DOM reads and writes to avoid layout thrashing in React components. Use useLayoutEffect instead of useEffect for DOM measurements. Cache geometric properties like offsetWidth instead of repeatedly querying them during animations.
Preload Critical Font Resources
Medium Impact+5 points estimatedWhy It Matters:
Font loading dependency chains create 833ms delays that could impact text rendering and LCP timing.
How to Fix:
Add <link rel='preload' as='font'> tags in Next.js _document.js for critical WOFF2 fonts. Use font-display: swap in CSS to prevent invisible text. Consider self-hosting fonts or using next/font for automatic optimization.
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
Preload Critical Font Resources
Font loading dependency chains create 833ms delays that could impact text rendering and LCP timing.
Eliminate Forced Reflow Operations
41ms of forced reflow time is causing layout thrashing and degrading rendering performance.
Modernize JavaScript Build Target
Legacy JavaScript polyfills add unnecessary 13KB for modern browsers.
Remove Unused JavaScript Code
37% of JavaScript bundle is unused, wasting 25KB and delaying LCP by 150ms.