Shopify Speed Audit
A Shopify speed audit is a systematic evaluation of all factors affecting a store's page load performance — theme weight, app script count, image optimization, render-blocking resources, Core Web Vitals scores, and server response times.
Why It Matters for Shopify Stores
A speed audit reveals the specific causes of slow performance rather than just reporting a low score. Knowing your LCP is 5.2 seconds is not actionable — knowing it's caused by a 2.4MB unoptimized hero image and three render-blocking app scripts is. A comprehensive speed audit prioritizes fixes by impact and effort, allowing merchants to address the most damaging issues first and track improvement over time.
How to Check Your Store
Run your store URL through StoreAudit for a scored speed assessment. Supplement with Google PageSpeed Insights for detailed Lighthouse diagnostics and Chrome DevTools Network tab for waterfall analysis.
Use the free shopify speed test toolHow to Fix It
Work through the speed audit findings in priority order. Quick wins: optimize the LCP image, enable lazy loading, remove unused apps. Medium effort: implement defer/async on scripts, optimize font loading. Longer term: migrate to a faster theme, refactor custom code.
Related Terms
Core Web Vitals
Core Web VitalsCore Web Vitals are Google's set of user experience metrics that measure loading performance (LCP), visual stability (CLS), and interactivity (INP).
LCP (Largest Contentful Paint)
Core Web VitalsLargest Contentful Paint measures how long it takes for the largest visible content element on a page — usually a hero image or headline — to finish loading.
Render-Blocking Resources
PerformanceRender-blocking resources are CSS or JavaScript files that prevent a browser from displaying page content until they've fully downloaded and parsed.
Shopify Apps
ShopifyShopify Apps are third-party integrations available in the Shopify App Store that add features to your store — reviews, loyalty programs, upsells, email capture, chat, and more.
Image Optimization
PerformanceImage optimization is the process of reducing image file size without significantly reducing visual quality, while ensuring images are the correct format (WebP), dimensions, and compression for their use case.
Check your store's Shopify Speed Audit with our free tools
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