Defer Render-Blocking JavaScript Resources

How to optimize cerasus.ro

WordPress SiteScore: 70/100Analyzed May 2026Re-analyze this site

Defer Render-Blocking JavaScript Resources

High Impact+12 points estimated

Why It Matters

jQuery and WordPress core scripts are blocking initial render and delaying FCP by 320ms.

How to Fix

Use a WordPress optimization plugin like WP Rocket or Autoptimize to defer jquery.min.js, jquery-migrate.min.js, and hooks.min.js. Move these scripts to load after critical content renders. Consider using native JavaScript where possible to reduce jQuery dependency.

0Needs Improvement

What This Score Means

A score of 70 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

LCP

Largest Contentful Paint

7.8s
Poor

Good: < 2.5s

Measures how long it takes for the main content to appear on screen

INP

Interaction to Next Paint

174ms
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 poor performance with a score of 70/100, primarily due to an extremely slow Largest Contentful Paint of 7.8 seconds - nearly four times longer than the recommended 2.5 seconds. The biggest issues are render-blocking JavaScript files (jQuery and other scripts) that delay the initial page display by an estimated 320ms, and oversized images that waste 75KB of unnecessary downloads. Additionally, the site has 30KB of unused CSS code and experiences forced reflows from JavaScript that queries page layout properties inefficiently. To improve performance, prioritize deferring non-critical JavaScript, properly sizing images for their display dimensions, and removing unused CSS rules.

Other Optimization Recommendations

Fix LCP Banner Image Discovery

High Impact+15 points estimated

Why It Matters:

Your LCP element (hero banner) lacks fetchpriority='high' and loads as a background image, delaying discovery and rendering.

How to Fix:

Convert the background-image banner to an <img> element with fetchpriority='high' attribute. Update your Savoy theme's banner template to use proper img tags instead of CSS background-image. Ensure the image is discoverable in the initial HTML without JavaScript dependency.

Optimize Product Images Delivery

Medium Impact+8 points estimated

Why It Matters:

Product images are oversized (680x844px served for 183x227px display) wasting 75KB and slowing page load.

How to Fix:

Configure WordPress responsive images to serve correctly sized variants. Update your WooCommerce product image sizes in WordPress admin. Use a plugin like ShortPixel or Smush to automatically generate and serve appropriately sized images based on display dimensions.

Keep Your Site Fast After Optimization

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