Analyse any Shopify store's performance signals across 6 dimensions: images, scripts, app overhead, CSS, technical meta, and HTML size.
Fetching store HTML and running Google PageSpeed Insights…
Performance problems to fix
Performance strengths to maintain
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Paste any page URL - homepage, product page, or collection.
Image weight, script count, app overhead, CSS size, technical meta, and HTML size - all measured instantly.
Each dimension is scored and ranked. The biggest wins are shown first so you know exactly what to fix.
ecomspy's free Shopify speed audit identifies the exact issues slowing your store down - unoptimized images, render-blocking scripts, unused app code, and Core Web Vitals failures. Paste your URL and get a prioritized fix list in seconds. Faster stores rank higher on Google and convert up to 7% more per second saved. Free, no account needed.
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{{ image | image_url: width: 1200, format: 'webp' }}. Shopify serves WebP via CDN.No account required. No credit card. Instant results.
A Shopify speed audit checks every technical factor that makes your storefront load slowly for real shoppers. ecomspy's free speed audit scans for unoptimized images (missing WebP, oversized files), render-blocking JavaScript and CSS, Core Web Vitals scores (LCP, CLS, INP), total page weight, and third-party script bloat from apps and tracking pixels. Each issue is ranked by its impact on load time so you know whether compressing images or removing a slow app will make the biggest difference. Slow Shopify stores lose sales directly - a one-second delay in load time reduces conversions by up to 7% according to Google research.
Core Web Vitals directly affect your Shopify store's Google search rankings because Google uses them as a page experience signal in its ranking algorithm. The three metrics that matter are LCP (Largest Contentful Paint - how fast the main image or text loads), CLS (Cumulative Layout Shift - how much the page jumps as it loads), and INP (Interaction to Next Paint - how quickly the page responds to taps and clicks). Stores with poor Core Web Vitals scores can be demoted in search results even if their content is strong. ecomspy's speed audit measures all three, flags which specific elements are causing failures, and ranks the fixes that will move your scores into the green.
Shopify stores load slowly for five main reasons: too many installed apps (each adds JavaScript that executes on every page load), large uncompressed product images served as JPEG or PNG instead of WebP, render-blocking CSS or JavaScript in the document head, excessive use of Shopify's liquid theme code without caching, and unoptimized Google Fonts or icon libraries. Third-party chat widgets, review apps, and abandoned cart scripts compound the problem. A single poorly coded app can add 1-3 seconds to load time. ecomspy's speed audit identifies every script, image, and resource contributing to slowness and tells you which ones to remove or optimize first.
To fix slow page speed on your Shopify store, start with the highest-impact changes: convert all product images to WebP format at 80% quality, audit your installed apps and remove any not actively used, defer or async-load non-critical JavaScript, and enable Shopify's built-in CDN for static assets. Next, reduce Google Fonts to a single weight and family, remove unused CSS from your theme, and consider a lightweight theme if your current one loads more than 150KB of CSS. Use ecomspy's speed audit to get a ranked list of your specific issues - generic advice helps less than knowing your exact LCP element or which app is adding 800ms to your load time.
A Shopify store should aim for a Google PageSpeed Insights score of 70 or above on mobile and 85 or above on desktop to avoid ranking penalties and cart abandonment from slow loads. More importantly, target specific Core Web Vitals thresholds: LCP under 2.5 seconds, CLS under 0.1, and INP under 200 milliseconds. These are Google's 'good' thresholds that keep your store in positive page experience territory. Most default Shopify themes score 40-60 on mobile before optimization due to app bloat. ecomspy's speed audit benchmarks your store against these thresholds and shows you the gap, so you have a clear target for each metric.
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