LCP
Largest Contentful Paint
6.4s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Remove Unused JavaScript Code
How to optimize capriprivateboattours.com
Remove Unused JavaScript Code
High Impact+25 points estimated
Why It Matters
266 KiB of unused JavaScript is delaying LCP by 450ms and blocking the main thread.
How to Fix
Use Next.js dynamic imports to code-split components and defer Google Analytics/GTM loading. Audit and remove unused PostHog features. Configure your build to only include essential tracking scripts on page load, loading others after user interaction.
0Needs Improvement
What This Score Means
A score of 62 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
262ms
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 site has poor performance with a score of 62/100, indicating significant room for improvement. The biggest problem is excessive unused JavaScript from Google tracking scripts (Google Analytics and Tag Manager), which is wasting 260 KiB and delaying your Largest Contentful Paint by 6.4 seconds - well above the recommended 2.5 seconds. Your site is also suffering from render-blocking CSS files and inefficient caching policies that could save an additional 133 KiB on repeat visits. Removing or deferring unused JavaScript, optimizing your tracking implementation, and improving cache settings could boost your performance score by 25+ points and dramatically improve user experience.
Other Optimization Recommendations
Optimize Hero Image Delivery
High Impact+20 points estimatedWhy It Matters:
The hero image has poor caching (1 hour) and is causing LCP delays of 1.2 seconds.
How to Fix:
Increase Supabase storage cache headers to 1 year for static images. Optimize the hero image compression to reduce 27 KiB waste. Use Next.js Image component with priority={true} and proper sizing to eliminate render blocking.
Eliminate Render Blocking CSS
Medium Impact+15 points estimatedWhy It Matters:
CSS files are blocking First Contentful Paint by 500ms, delaying initial page rendering.
How to Fix:
Inline critical CSS for above-the-fold content in your Next.js pages. Use next/dynamic with { ssr: false } for non-critical components. Split CSS chunks and load non-essential styles asynchronously using media='print' onload trick.
Keep Your Site Fast After Optimization
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Related Performance Analyses
More Next.js Speed Tests
Next.js Performance Resources
Reduce JavaScript Bundle Size
1.3MB of unused JavaScript blocks the main thread for 1.7 seconds, preventing user interactions.
Fix Image Layout Shifts
Unsized images cause 0.295 CLS score, creating jarring content jumps that harm user experience.
Eliminate Render Blocking CSS
CSS files are blocking initial page render for 750ms, significantly delaying LCP and FCP.
Optimize JavaScript Build Configuration
Legacy JavaScript polyfills and forced reflows block the main thread for 435ms, degrading user interaction responsiveness.