We Ran AI Diagnostics on Shopify Stores. Here Are the Most Common Problems.

Every Shopify store has hidden issues eating into its revenue. The question is whether you know about them.

We built ShopDoc to find the problems Shopify merchants can’t see. It runs 30+ automated checks on any Shopify store — performance, SEO, mobile UX, and conversion optimization — in under 60 seconds. No signup, no cost. Just paste a URL.

After running ShopDoc on store after store, clear patterns have emerged. The same issues show up again and again, across stores of every size — from solo founders to established brands.

Here’s what we keep finding.

The Most Common Issues (By Category)

Performance: Most Stores Have Fixable Speed Problems

Speed is the single most impactful factor in ecommerce conversion. And yet, the majority of stores we analyze have significant room for improvement.

The top performance issues we find:

1. Uncompressed or oversized images This is the easiest win and the most common miss. Hero banners uploaded at 4MB, product photos at 2400x2400 when they’re displayed at 600x600, lifestyle images with no compression. A single oversized image can add 2-3 seconds to page load.

The fix: Use Shopify’s built-in image optimization (it converts to WebP automatically for supported browsers), but also resize images to the maximum display size before uploading. A hero banner doesn’t need to be 4000px wide — 1600px is usually sufficient.

2. Unused JavaScript from uninstalled apps Every Shopify app injects JavaScript into your theme. Uninstalling the app often doesn’t remove the code. After a year of trying apps, many stores are loading 10-20 dead scripts on every page.

The fix: Review your theme code (or have a developer review it) and remove any script tags referencing apps you no longer use. This is a 30-minute cleanup that can shave 1-2 seconds off load time.

3. No lazy loading on product listing pages Collection pages with 40+ products loading every product image on initial page load — even the ones the customer hasn’t scrolled to yet. This forces the browser to download dozens of images the customer may never see.

The fix: Most modern Shopify themes support lazy loading. Check your theme settings, or add loading="lazy" to image tags in your theme code.

SEO: The Gaps Shopify Doesn’t Fill Automatically

Shopify handles some SEO automatically — canonical URLs, sitemap generation, basic product schema. But the areas where Shopify doesn’t automate are exactly the areas that drive the most organic traffic.

1. Missing or duplicate meta descriptions Shopify auto-generates meta descriptions from product descriptions, which means many stores have dozens of products with identical or truncated meta descriptions. Google doesn’t penalize duplicate descriptions, but it won’t reward them either — and a compelling meta description can double your click-through rate from search results.

The fix: Write unique meta descriptions for your top 20 products and all collection pages. Focus on benefit-driven copy that makes searchers want to click. 150-160 characters.

2. Missing alt text on product images This is both an SEO issue and an accessibility issue. Every product image without alt text is a missed opportunity to appear in Google Image search — which drives meaningful traffic for visual product categories.

The fix: Add descriptive alt text to every product image. Don’t keyword-stuff — describe what’s in the image in natural language. “Blue stainless steel water bottle 32oz” is better than “water bottle buy online best price.”

3. Thin or missing content on collection pages Most collection pages are just a product grid with a title. No description, no context, no content for search engines to index. Adding 100-200 words of relevant content to your top collections can meaningfully improve their search rankings.

The fix: Write a short paragraph for each major collection page explaining what the collection offers and who it’s for. This takes 30 minutes and can drive significant organic traffic over time.

Mobile UX: Small Issues, Outsized Impact

Since 70%+ of Shopify traffic comes from mobile, even small mobile issues have outsized impact.

1. Touch targets too small or too close together Buttons and links designed for desktop mouse clicks don’t always work for mobile taps. We regularly find add-to-cart buttons, filter controls, and navigation links that require pixel-precise tapping on mobile screens.

The fix: Ensure all interactive elements are at least 44x44 pixels (Apple’s recommended touch target size) with adequate spacing between them.

2. Content or elements overflowing the viewport A table, image, or custom element that’s wider than the mobile screen creates a horizontal scrollbar. It looks unprofessional and erodes trust. Customers don’t buy from stores that look broken.

The fix: Test every page on mobile (not just “responsive preview” — actual mobile devices). Set max-width: 100% on images and tables. Use overflow-x: hidden cautiously as a last resort.

3. Intrusive pop-ups on mobile Email capture pop-ups that work well on desktop can be unusable on mobile — covering the entire screen with a tiny close button that’s hard to tap. Google has penalized intrusive interstitials on mobile since 2017.

The fix: Use mobile-specific pop-up settings: smaller size, easy-to-tap close button, delay before showing. Or use a non-intrusive slide-in instead.

Conversion: Trust and Clarity Issues

1. No visible social proof on product pages Product pages without reviews, ratings, or user-generated content. In an era of skepticism about online shopping, social proof is table stakes.

2. Shipping information not visible until checkout If customers can’t find shipping costs and delivery timelines before checkout, a significant percentage will abandon their cart. This is one of the top cart abandonment factors across all ecommerce.

3. Weak or hidden calls to action Add-to-cart buttons that blend into the page, require scrolling to find, or don’t stand out visually. The path from product interest to purchase should be immediately obvious.

The Compound Effect

No single one of these issues will tank your store. But they compound.

A store with slow load times, missing meta descriptions, small mobile touch targets, and hidden shipping info isn’t losing customers from one problem — it’s losing them from twenty.

Each issue shaves a small percentage off your conversion rate. Stack ten of them together and you could be leaving 20-30% of your potential revenue on the table.

The frustrating part: most of these are fixable in a weekend. You just have to know they exist.

Find Your Store’s Issues in 60 Seconds

ShopDoc runs 30+ checks across performance, SEO, mobile UX, and conversion optimization — and tells you exactly what to fix, in priority order.

No signup. No credit card. No sales call.

Just paste your store URL and see what comes back.

Run Your Free ShopDoc Analysis →

We built ShopDoc on 15 years of ecommerce experience. Every check reflects a real issue we’ve seen cost real merchants real money.

If the report surfaces problems you’d rather have an expert handle, we’re here to help.

ShopDoc is a free AI-powered store diagnostic built by Razoyo.