LCP
Largest Contentful Paint
27.9s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Optimize Slider Image Delivery
How to optimize vegdog.de
Optimize Slider Image Delivery
High Impact+25 points estimated
Why It Matters
Oversized animated GIFs (1.4MB total) are delaying LCP by 7+ seconds and consuming excessive bandwidth.
How to Fix
Replace large animated GIFs with optimized videos (MP4/WebM) using Shopify's native video support. Compress existing images using Shopify's built-in image transformation by adding proper sizing parameters to URLs. Add fetchpriority='high' to the LCP image element in your slider component.
0Poor
What This Score Means
A score of 31 falls in the "Poor" 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
473ms
Needs Improvement
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 Shopify site has severe performance issues with a critically low score of 31/100. The biggest problem is extremely slow loading times, with the main content (Largest Contentful Paint) taking a devastating 27.9 seconds to appear and the page becoming interactive only after 40.2 seconds. The primary culprit is oversized animated GIF images in the banner slider that are over 1.8MB combined and lack proper compression and sizing optimization. Additionally, the site loads nearly 900KB of unused JavaScript and CSS, creating significant blocking that delays the initial page render by almost 4 seconds. Compressing and properly sizing these banner images, removing unused code, and implementing better caching could potentially improve the score by 40+ points and provide a dramatically better user experience.
Other Optimization Recommendations
Remove Unused JavaScript Dependencies
High Impact+18 points estimatedWhy It Matters:
897KB of unused JavaScript is blocking page rendering and adding 2.4 seconds to load time.
How to Fix:
Audit Shopify apps and remove unused ones like redundant gift/loyalty apps. Configure remaining apps to load asynchronously or defer until after page interaction. Use Shopify's Script Tag API to load third-party scripts conditionally based on user actions.
Implement Efficient Resource Caching
Medium Impact+8 points estimatedWhy It Matters:
Poor cache policies on 170KB of resources cause unnecessary re-downloads for returning visitors.
How to Fix:
Configure longer cache headers for static assets through Shopify Plus Launchpad or use a CDN like Cloudflare. Set cache-control headers to at least 1 year for CSS/JS files. Enable browser caching for third-party scripts by hosting critical ones locally in your theme assets.
Keep Your Site Fast After Optimization
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Related Performance Analyses
More Shopify Speed Tests
Shopify Performance Resources
Optimize Critical CSS Loading
Render-blocking CSS files delay First Contentful Paint by 260ms.
Remove Unused JavaScript Code
1,151 KiB of unused JavaScript delays LCP by 150ms and blocks main thread execution.
Fix Major Layout Shifts
Poor CLS score of 0.897 severely impacts user experience and Core Web Vitals.
Defer Non-Critical CSS and JavaScript
Render-blocking resources delay First Contentful Paint by 450ms and prevent page interaction.