Free Shopify Scanner
Free Shopify Store Performance Scanner
Shopify stores often suffer from slow third-party apps, unoptimised images, and render-blocking scripts. PageDiag scans your store in 30 seconds and tells you exactly what to fix.
What We Analyse
Performance
Page speed directly affects sales - we measure every metric that impacts conversions
SEO
Everything that determines whether Google shows your store to potential customers
Accessibility
How usable your store is for everyone - including the 15% of users with disabilities
Common Shopify Performance Issues
- 1Excessive third-party apps adding render-blocking JavaScript
- 2Unoptimised product images without lazy loading
- 3Large Liquid template rendering times
- 4Unused CSS from theme bloat
- 5Missing meta descriptions on collection pages
- 6No structured data for products (JSON-LD)
- 7Chat widgets and tracking scripts blocking main thread
Shopify Speed Optimisation Tips
- ✓Remove unused Shopify apps - each one adds JavaScript overhead
- ✓Use WebP/AVIF images and enable lazy loading
- ✓Minimise Liquid loops in templates
- ✓Defer non-critical JavaScript (analytics, chat widgets)
- ✓Add JSON-LD structured data for products and reviews
- ✓Enable Shopify's built-in CDN and compression
Ready to diagnose your Shopify store?
Find out what's costing you customers in 30 seconds. Free scan, no account needed.
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