LCP
Largest Contentful Paint
26.3s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Remove Unused CSS and JavaScript
How to optimize logistico.jp
Remove Unused CSS and JavaScript
High Impact+15 points estimated
Why It Matters
816KB of unused JavaScript and 175KB of unused CSS are blocking render and delaying page load by 4+ seconds.
How to Fix
Use webpack-bundle-analyzer to identify unused code in your build assets. Remove unused CSS rules from app-r8rlMTPf.css and inertia-R1wE83bg.css files. Code-split JavaScript bundles to load only necessary code initially and lazy-load remaining features.
0Poor
What This Score Means
A score of 41 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
434ms
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 website has severely poor performance with a score of just 41/100, indicating critical issues that significantly impact user experience. The biggest problem is an extremely slow loading speed - it takes over 26 seconds for the largest content to appear and 43 seconds for the page to become fully interactive, which is unacceptable for modern web standards. The site is loading massive amounts of unused CSS (175 KB) and JavaScript (816 KB), along with oversized images totaling over 17 MB, creating a bloated experience that wastes users' bandwidth and time. Immediate priorities should include removing unused code, compressing and properly sizing images, and implementing efficient caching - these optimizations alone could save over 13 MB and reduce load times by several seconds.
Other Optimization Recommendations
Optimize Large Image Files
High Impact+18 points estimatedWhy It Matters:
Images consume 5.4MB and delay LCP by 1.6 seconds due to oversized gallery images.
How to Fix:
Compress gallery images using tools like TinyPNG or ImageOptim to reduce file sizes by 60-80%. Convert JPEGs to WebP format for better compression. Implement responsive images with srcset to serve appropriately sized images for different screen sizes.
Implement Resource Preloading Strategy
Medium Impact+8 points estimatedWhy It Matters:
Critical resources like the LCP image have 1.8 seconds of load delay due to late discovery.
How to Fix:
Add preload hints for the hero image sakura-1.png in the HTML head section. Add fetchpriority='high' attribute to the LCP image element. Preconnect to external domains like unpkg.com and js.stripe.com to establish early connections.
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Related Performance Analyses
More Generic Speed Tests
Generic Performance Resources
Fix Layout Shift Issues
CLS score of 0.299 indicates significant content jumping, mainly from carousel and banner loading.
Optimize LCP Image Discovery
The LCP image has an 8.3 second resource load delay because it's not discoverable in the initial HTML.
Remove Unused JavaScript Code
2,134 KiB of unused JavaScript is delaying LCP by 7.95 seconds and blocking the main thread.
Optimize Font Loading Strategy
Missing font-display properties cause 35ms of render blocking and potential layout shifts.