LCP
Largest Contentful Paint
5.2s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Implement Efficient Browser Caching
How to optimize stijnvansprang.nl
Implement Efficient Browser Caching
High Impact+25 points estimated
Why It Matters
Missing cache headers force 174 KiB of resources to re-download on every visit, delaying LCP by 800ms and FCP by 650ms.
How to Fix
Add cache headers via your WordPress hosting panel or .htaccess file for static assets. Set 1-year expiry for jQuery, fonts, and JavaScript files. Configure your CDN or hosting provider to automatically cache WordPress assets with proper headers.
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
INP
Interaction to Next Paint
17ms
Good
Good: < 200ms
Measures how quickly the page responds to user interactions
CLS
Cumulative Layout Shift
0.03
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, showing concerning load times of 4.4 seconds for both First Contentful Paint and a 5.2-second Largest Contentful Paint. The biggest issue is inefficient caching, which could save 174 KiB and improve loading times by up to 800ms - critical files like jQuery and tracking scripts have no cache lifetime set. Additional quick wins include removing 20 KiB of unused FontAwesome CSS (99% unused), deferring render-blocking stylesheets that are delaying initial paint by 820ms, and optimizing font loading with proper font-display settings. Addressing these caching and CSS optimization issues could easily boost the performance score into the 80s and significantly improve user experience.
Other Optimization Recommendations
Eliminate Render-Blocking CSS Resources
High Impact+20 points estimatedWhy It Matters:
Multiple CSS files are blocking initial page render, delaying both LCP and FCP by 800ms.
How to Fix:
Use a WordPress optimization plugin like WP Rocket or Autoptimize to defer non-critical CSS. Inline critical above-the-fold styles directly in the HTML head. Load WooCommerce and plugin CSS files asynchronously using loadCSS or similar technique.
Remove Unused FontAwesome CSS
Medium Impact+8 points estimatedWhy It Matters:
99.4% of the 20KB FontAwesome CSS file is unused, contributing unnecessary bloat to your page load.
How to Fix:
Replace FontAwesome with individual SVG icons for only the icons you use. Alternatively, use a FontAwesome subset generator to include only required icons. Consider switching to WordPress's built-in Dashicons for basic UI elements.
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Related Performance Analyses
More WordPress Speed Tests
WordPress Performance Resources
Extend Cache Lifetimes for Assets
Short cache durations force unnecessary re-downloads on repeat visits, slowing LCP by 150ms.
Convert Images to Modern Formats
Your profile image wastes 85KB which could be reduced by 30-50% with modern formats.
Eliminate Render Blocking CSS
Your main stylesheet blocks initial page render, delaying both FCP and LCP by 150ms.
Remove Unused CSS and JavaScript
93% of CSS (37 KiB) and 323 KiB of JavaScript are unused, wasting bandwidth and slowing page load.