LCP
Largest Contentful Paint
8.9s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Optimize Product Image Delivery
How to optimize ona.co.il
Optimize Product Image Delivery
High Impact+12 points estimated
Why It Matters
Oversized product images waste 682 KiB and delay LCP by 600ms with images 10x larger than needed.
How to Fix
Implement responsive image srcset attributes for product thumbnails. Configure WooCommerce to generate properly sized thumbnails (186x177px for grid display). Use WordPress plugins like ShortPixel to automatically serve optimized WebP images at correct dimensions.
0Needs Improvement
What This Score Means
A score of 66 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
107ms
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 website has poor performance with a score of 66/100, primarily due to an extremely slow Largest Contentful Paint of 8.9 seconds. The biggest issue is oversized product images that are being loaded at 2267x2152 pixels but displayed at only 186x177 pixels, wasting 682 KiB of bandwidth and significantly delaying page rendering. Additionally, the site has no caching configured for JavaScript files and loads 126 KiB of unused CSS, creating unnecessary render-blocking delays. Implementing responsive images, enabling proper browser caching, and removing unused code could improve the performance score by 25+ points and dramatically speed up the user experience.
Other Optimization Recommendations
Remove Unused CSS and JavaScript
High Impact+15 points estimatedWhy It Matters:
Unused code blocks rendering for 1,050ms and wastes 192 KiB of bandwidth on every page load.
How to Fix:
Remove completely unused Dashicons CSS (100% unused, 35KB). Use Asset CleanUp Pro to disable FontAwesome icons on pages that don't need them. Audit and remove unused WooCommerce and plugin CSS. Consider critical CSS inlining for above-the-fold content.
Implement Long-Term Browser Caching
High Impact+10 points estimatedWhy It Matters:
Zero cache lifetime on static assets forces 312 KiB re-downloads on every visit, slowing repeat visits significantly.
How to Fix:
Configure WordPress caching plugin (WP Rocket or W3 Total Cache) to set 1-year expiration headers for CSS/JS files. Add cache-busting version parameters to prevent stale content. Set shorter cache (1 week) for frequently updated assets like product images.
Keep Your Site Fast After Optimization
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Related Performance Analyses
More Generic Speed Tests
Generic Performance Resources
Reduce JavaScript Execution Time
Main thread is blocked for 4.6 seconds by script evaluation, preventing user interactions and delaying Time to Interactive.
Optimize Network Resource Chain
JavaScript dependency chains are creating a 6.7-second bottleneck that delays Largest Contentful Paint.
Implement Long-Term Browser Caching
Zero cache lifetime on static assets forces 312 KiB re-downloads on every visit, slowing repeat visits significantly.
Eliminate Forced Layout Reflows
JavaScript is forcing 125ms of layout reflows, blocking the main thread and degrading user interaction responsiveness.