Speed Audit

Yes, completely free. No signup, no credit card. Paste your store URL and get a full speed audit in seconds.

Yes. Portent's analysis of over 27,000 landing pages found conversion rates drop roughly 4.4% for every additional second of load time (in the first five seconds). Google also uses Core Web Vitals as a ranking factor, so speed directly affects organic traffic too.

Aim for a Lighthouse performance score above 70 on mobile. Most Shopify stores score between 30-60 due to app scripts and unoptimized images. A score above 80 puts you in the top tier.

Not always. Many fixes - compressing images, removing unused apps, enabling lazy loading - can be done without code. The audit flags which issues need a developer and which you can fix yourself.

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, instead of making changes in a random order and hoping one of them helps. Slow Shopify stores lose sales directly - Portent's analysis of over 27,000 landing pages found conversion rates drop roughly 4.4% for every additional second of load time. The audit runs against your live storefront exactly as a shopper's browser would load it, so the results reflect real-world performance rather than a lab-only benchmark.

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, since Google treats page experience as a tiebreaker between otherwise similarly relevant pages. This matters more on mobile, where Google's indexing is based entirely on the mobile version of your site, not desktop. 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 fastest.

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, since each one loads its own script on every page regardless of whether the shopper interacts with it. A single poorly coded app can add 1-3 seconds to load time on its own, and most stores have several installed at once, so the combined effect is often worse than any individual app's own benchmark suggests. 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. A quick way to find low-hanging fruit is to sort your installed apps by how long they've been dormant - an app nobody has touched in months is an easy removal candidate with no real downside. 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, and they matter more for ranking purposes than the single composite score most tools report. Most default Shopify themes score 40-60 on mobile before optimization due to app bloat, so don't be discouraged if your first scan comes back low - that's the normal starting point, not a sign something is broken. ecomspy's speed audit benchmarks your store against these thresholds and shows you the gap, so you have a clear target for each metric instead of chasing an abstract overall grade.