Common Ecommerce SEO Mistakes and How to Fix Them

Most ecommerce stores are leaving organic traffic on the table. Not because their products are wrong or their market is too competitive, but because avoidable SEO mistakes are quietly suppressing their visibility every single day. Some of these mistakes are obvious once you know what to look for. Others are subtle, baked into default platform behaviour, and easy to overlook even when you think your SEO is in reasonable shape.

This guide covers the most common ecommerce SEO mistakes we see across stores of all sizes, why each one hurts your rankings, and what to do about it. If you want a full picture of the SEO landscape before diving into specific mistakes, our guide on what ecommerce SEO is and how it works gives a solid foundation.

Mistake 1: Using Duplicate or Copied Product Descriptions

This is the single most widespread content mistake in ecommerce and one of the most damaging. When a store copies product descriptions directly from a manufacturer, supplier, or another retailer, they are publishing content that already exists verbatim on dozens or hundreds of other websites. Google has no reason to rank one copy above another, so it typically picks a single source, often the brand’s own site or the largest retailer, and suppresses the rest.

The fix is to write original product descriptions for every page you want to rank. Original does not mean longer for its own sake. It means genuinely useful content that adds something beyond the specification sheet. Answer the questions a buyer has before purchasing. Highlight real advantages over alternatives. Write in a voice that reflects your brand. Even a well-written two hundred word description will consistently outperform five hundred words of copied text.

Our complete product page SEO guide covers exactly what makes a product description work both for SEO and for conversion.

Mistake 2: Ignoring Category Pages

Category pages are typically the highest-traffic pages on an ecommerce store and among the most neglected. Many stores treat them as nothing more than product grids with a title at the top. From an SEO perspective, this leaves enormous ranking potential untapped.

Category pages are where high-volume, high-intent commercial keywords live. Queries like ‘mens running shoes’, ‘organic face moisturiser’, or ‘office desks under 500’ are all category-level searches. If your category page has no content beyond a list of products, Google has very little to evaluate when deciding whether to rank it for those terms.

Adding a concise, genuinely useful introductory section to each category page, one that explains what the category covers, what the key buying considerations are, and what makes your range worth exploring, gives Google the signals it needs to rank that page competitively. Our guide on category page SEO and winning high-volume commercial keywords covers the full optimisation process.

Mistake 3: Mismanaging Faceted Navigation

Faceted navigation, the filtering system that lets shoppers sort by size, colour, price, material, and other attributes, is genuinely useful for shoppers. Left unmanaged from an SEO perspective, it is one of the fastest ways to destroy your store’s search performance.

When each filter combination generates a unique URL, a category page with ten filter options can produce thousands of near-duplicate, low-value pages. These pages consume crawl budget, dilute the authority of your real category pages, and create duplicate content issues that confuse Google about which version of a page to rank.

The solution involves a combination of canonical tags, noindex directives, and robots.txt rules applied to filter URLs based on whether they have genuine ranking potential. Our in-depth guide on faceted navigation SEO and handling filtering without destroying crawl budget walks through how to diagnose and fix this correctly.

Mistake 4: Thin or Missing Schema Markup

A large number of ecommerce stores either have no structured data implemented or have incomplete schema that is missing the fields Google needs to generate rich results. This is a missed opportunity that directly affects how your listings appear in search and, consequently, how often people click on them.

Product schema that includes pricing, availability, and review ratings enables rich snippets in organic search results. Star ratings, price displays, and in-stock labels all increase click-through rates significantly. Stores without this implementation appear as plain blue links next to competitors displaying full product information, and they lose clicks as a result.

Every product page should have Product schema with an Offers object, AggregateRating schema where reviews exist, and BreadcrumbList schema to support navigational context. Our guide on ecommerce schema markup implementation covering product, review, and breadcrumb structured data covers the full implementation with working examples.

Mistake 5: Targeting the Wrong Keywords on the Wrong Pages

Keyword misalignment is common and often invisible until you look at it directly. It happens when informational keywords end up on product pages, when transactional keywords are buried in blog posts, or when multiple pages on the same store compete against each other for the same term.

A product page should target keywords with clear purchase intent. A blog post or buying guide should target informational queries from shoppers still in the research phase. When these get mixed up, both pages underperform because neither sends the right signals to Google about what it is and what it should rank for.

Keyword cannibalism, where two or more pages compete for the same term, is particularly damaging. Google has to choose between them and often ranks neither as highly as one consolidated page would rank. Conducting thorough ecommerce keyword research to map high-intent terms to the right page types resolves this before it becomes a problem.

Mistake 6: Neglecting Page Speed and Core Web Vitals

Page speed affects both rankings and revenue. Google has confirmed page experience as a ranking signal, with Core Web Vitals at the centre of how it evaluates this. But even setting rankings aside, a slow ecommerce store loses sales. Research consistently shows that each additional second of load time on a product or checkout page reduces conversion rates meaningfully.

The most common culprits on ecommerce stores are unoptimised product images, excessive third-party scripts from analytics tools, live chat, and marketing pixels, and render-blocking JavaScript from installed apps or plugins. Each of these adds latency that compounds across a page load.

For Shopify stores specifically, installed apps are a major source of page speed problems that store owners often do not realise are affecting them. Our guide on Shopify app bloat and how to fix page speed issues explains how to identify which apps are causing slowdowns and how to address them without removing functionality your store needs.

Mistake 7: Poor Internal Linking Structure

Internal linking is how authority flows through your store and how Google understands the relationship between your pages. Many ecommerce stores have weak internal linking, with product pages that link to nothing, category pages that do not reference related categories, and blog content that never links back to the products it discusses.

Every product page should link to its parent category, to related products, and to any relevant buying guides on your site. Category pages should link to subcategories and to supporting content. Blog posts should link naturally to the product and category pages most relevant to what the reader is learning about. This network of internal links distributes authority, helps Google understand your site structure, and keeps shoppers moving through your store.

Mistake 8: Not Optimising for Mobile

Google uses mobile-first indexing, which means the mobile version of your store is what Google primarily evaluates for ranking purposes. A store that looks fine on desktop but has a poor mobile experience, slow load times on 4G connections, tap targets that are too small, text that requires zooming, or a checkout flow that is difficult to complete on a phone, is being evaluated on its weakest version.

Test your product pages, category pages, and checkout flow on real mobile devices regularly. Pay particular attention to how product images render, how easily the add-to-cart button is tappable, and how your page content flows on a narrow screen. Understanding Core Web Vitals and their impact on SEO will help you measure and improve your mobile performance systematically.

Mistake 9: Skipping the Technical SEO Foundation

Some store owners invest heavily in content and keywords while the technical layer of their site is quietly preventing much of that work from paying off. Crawl errors, misconfigured canonical tags, broken redirects, unintentional noindex tags, and XML sitemaps containing redirected or thin pages all limit how effectively Google can access and evaluate your store.

Running a structured technical audit before investing in content or link building ensures you are not building on a broken foundation. Our Shopify technical SEO checklist and WooCommerce SEO guide are the best starting points depending on which platform you are running.

Mistake 10: Treating SEO as a One-Time Task

Perhaps the most expensive mistake of all. SEO is not a setup task you complete and move on from. Google updates its algorithms regularly. Competitors improve their pages. New products get added. Old products go out of stock. Content ages and loses relevance. Any of these can cause rankings that took months to build to erode without you noticing.

The stores that maintain and grow their organic traffic over time are the ones treating SEO as an ongoing process: running regular audits, refreshing existing content, monitoring ranking changes, and building authority continuously. If you are thinking about how SEO fits into your broader growth strategy, our overview of effective digital marketing tactics for ecommerce businesses puts it all in context.

Where to Start Fixing These Mistakes

If several of these mistakes apply to your store, the temptation is to try to fix everything at once. A more effective approach is to prioritise by impact. Technical issues that prevent pages from being indexed or waste crawl budget come first because they affect every other SEO effort. Duplicate content and thin page issues come next because they directly suppress your most important pages. On-page, schema, and speed improvements follow, with content strategy and internal linking as ongoing parallel work.

A proper SEO audit will tell you exactly where your store stands across all of these areas and help you sequence your fixes for maximum return. Our complete ecommerce SEO checklist gives you a structured framework to work through every layer of your store’s optimisation.