Largest Contentful Paint
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
How to optimize everywish.fr
Three CSS files are blocking initial page render for 1,121ms, delaying first paint and user experience.
In your Shopify theme's layout/theme.liquid, inline critical CSS for above-the-fold content. Use rel='preload' for base.css and defer non-critical stylesheets. Move WUN-25.css and header-custom.css to load after initial render using media='print' onload='this.media="all"' technique.
A score of 60 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.
Largest Contentful Paint
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Interaction to Next Paint
Good: < 200ms
Measures how quickly the page responds to user interactions
Cumulative Layout Shift
Good: < 0.1
Measures visual stability - how much content shifts during page load
This Shopify site has poor performance with a score of 60/100, primarily due to an extremely slow Largest Contentful Paint of 18.3 seconds. The biggest problem is oversized images that are loading at 1000x1000 pixels but only displaying at 289x289 pixels, wasting 560 KB of data and significantly delaying page load. Additionally, the site has nearly 1MB of unused JavaScript from tracking scripts and third-party tools that could be removed or deferred. Optimizing image sizes, removing unnecessary JavaScript, and fixing render-blocking CSS files could improve the performance score by 30+ points and dramatically reduce loading times for users.
Why It Matters:
969 KiB of unused JavaScript is wasting 4.45 seconds of load time and significantly impacting LCP performance.
How to Fix:
Remove or defer Google Analytics and GTM scripts until after page load using Shopify's Script Tag API. Audit Zendesk chat widget - load it conditionally or after user interaction. Split JavaScript bundles in your theme to only load necessary code per page type.
Why It Matters:
Hero images are oversized (1000x1000 served at 289x289), wasting 560 KiB and delaying LCP by 50ms.
How to Fix:
Use Shopify's responsive image API to serve appropriately sized images. Replace static image URLs with responsive srcset using sizes='289px'. Add fetchpriority='high' to LCP image and remove loading='lazy' from above-the-fold hero images in your section template.
Once your site is optimized, maintain that speed. Use DeployHQ for zero-downtime, automated deployments—so performance fixes and updates go live safely every time, without breaking your site.
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More Shopify Speed Tests
Render-blocking CSS files delay First Contentful Paint by 260ms.
1,151 KiB of unused JavaScript delays LCP by 150ms and blocks main thread execution.
Poor CLS score of 0.897 severely impacts user experience and Core Web Vitals.
Render-blocking resources delay First Contentful Paint by 450ms and prevent page interaction.