LCP
Largest Contentful Paint
4.8s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Remove Unused JavaScript Code
How to optimize riobasel.ch
WordPress SiteScore: 73/100Analyzed January 2026
Remove Unused JavaScript Code
High Impact+18 points estimated
Why It Matters
173 KiB of unused JavaScript is blocking page load and delaying LCP by 850ms, with only 29% of loaded scripts being used.
How to Fix
Use Asset CleanUp or WP Rocket to disable unused scripts. Audit your theme's frontend.app.min.js and vendor.min.js files to remove unused code. Consider code splitting to load JavaScript only when needed. Defer Google Analytics loading until after page interaction.
0Needs Improvement
What This Score Means
A score of 73 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
69ms
Good
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 WordPress site has below-average performance with a score of 73/100, indicating significant room for improvement. The biggest problem is excessive unused JavaScript (173 KiB) that's slowing down page loading by nearly a second, combined with render-blocking CSS files that are delaying the initial page display by 1.8 seconds. The site's main content image takes 4.8 seconds to fully load due to poor resource loading delays and oversized images that could be 391 KiB smaller with proper optimization. Cleaning up the JavaScript files, deferring non-critical CSS, and implementing modern image formats with proper sizing could easily boost this site's performance score by 15-20 points and dramatically improve user experience.
Other Optimization Recommendations
Optimize LCP Image Discovery
High Impact+15 points estimatedWhy It Matters:
Your largest contentful paint image has a 3-second resource load delay because it's not discoverable in the initial HTML.
How to Fix:
Add fetchpriority='high' to your carousel's first image in the WordPress theme template. Preload the LCP image using <link rel='preload'> in your theme's header.php. Remove lazy loading from above-the-fold carousel images by modifying your carousel plugin settings.
Eliminate Render Blocking Resources
Medium Impact+12 points estimatedWhy It Matters:
CSS and JavaScript files are blocking first contentful paint for 1.8 seconds, preventing users from seeing any content.
How to Fix:
Inline critical CSS directly in your WordPress theme's header.php. Use WP Rocket to defer non-critical CSS like WooCommerce styles. Load the TypeKit font asynchronously using font-display: swap. Move Swiper.js to load after initial render since it's not needed immediately.
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WordPress Performance Resources
Clean Up Unused CSS Rules
67% of your CSS (19 KiB) is unused, increasing initial page load time unnecessarily.
Optimize Image Sizing and Format
Oversized images are wasting 26 KiB and contributing to slower LCP on mobile devices.
Remove Unused JavaScript Libraries
Unused JavaScript is wasting 125 KiB and delaying LCP by 750ms, severely impacting user experience.
Add Image Dimensions and Optimize
Missing image dimensions cause layout shifts and oversized images waste 27KB of bandwidth affecting load times.
Frequently Asked Questions
Keep Your Site Fast After Optimization
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