Eliminate Render Blocking JavaScript

How to optimize musikvielfalt.ch

WordPress SiteScore: 50/100Analyzed March 2026Re-analyze this site

Eliminate Render Blocking JavaScript

High Impact+25 points estimated

Why It Matters

JavaScript resources are blocking initial render, delaying LCP and FCP by 2.75 seconds.

How to Fix

Move frontend.app.min.js and jQuery to load asynchronously using async or defer attributes. Use WP Rocket or Autoptimize to automatically defer non-critical scripts. Keep only essential above-the-fold scripts synchronous.

0Needs Improvement

What This Score Means

A score of 50 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

7.0s
Poor

Good: < 2.5s

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

INP

Interaction to Next Paint

130ms
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 50/100 and extremely slow loading times. The biggest problem is render-blocking JavaScript files that are delaying page rendering by 2.75 seconds, causing your First Contentful Paint to occur at 5.1 seconds and Largest Contentful Paint at 7.0 seconds - both far exceeding Google's recommended thresholds. The site is also loading massive amounts of unused CSS (250 KiB) and JavaScript (2.4 MB), creating an unnecessarily heavy 6+ MB total page weight. Deferring or optimizing the blocking JavaScript files, removing unused code, and implementing proper caching could dramatically improve your Core Web Vitals and user experience.

Other Optimization Recommendations

Remove Unused JavaScript Code

High Impact+20 points estimated

Why It Matters:

Over 2.4MB of unused JavaScript is loaded, wasting 1.5 seconds on LCP performance.

How to Fix:

Use Asset CleanUp Pro to disable unused plugins on specific pages. Remove or replace the heavy Payrexx payment scripts with lighter alternatives. Implement code splitting to load only required JavaScript modules per page.

Implement Efficient Browser Caching

High Impact+15 points estimated

Why It Matters:

Resources lack proper cache headers, forcing unnecessary re-downloads and adding 3 seconds to LCP.

How to Fix:

Add cache-control headers for static assets via .htaccess or WordPress caching plugin. Set long expiration times (1 year) for fonts and CSS files. Configure CloudFront CDN cache settings to match your static resource versioning strategy.

Keep Your Site Fast After Optimization

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