SEO
SEO for ecommerce: errors that slow down sales in your online store
Most online stores lose sales not because of the product but because of invisible SEO errors. This guide explains the most common ones and how to fix them.
Why SEO is critical for ecommerce
Organic search is typically the highest-ROI traffic channel for ecommerce, generating clicks at zero ongoing cost per click compared to Google Shopping or Google Ads. A well-optimised online store can generate substantial organic revenue that continues growing without ongoing media spend. But ecommerce SEO has unique challenges that general SEO guides rarely address adequately.
The most critical ecommerce SEO issues are often invisible to store owners: thin product descriptions copied from manufacturers, duplicate content across product variants, crawl budget waste from faceted navigation creating thousands of near-identical URLs, and category pages with no unique content. These structural issues can prevent even excellent products from appearing in search results.
Most common technical SEO errors in online stores
The most frequent technical errors include: missing or duplicate title tags and meta descriptions, broken internal links and 404 errors from deleted products, missing canonical tags on product variant pages, slow loading caused by large unoptimised product images, missing or incorrect structured data (product schema, breadcrumbs, reviews) and improper handling of out-of-stock products.
Run a regular crawl of your store using tools like Screaming Frog (free up to 500 URLs), Ahrefs or SEMrush to identify these issues systematically. Pay particular attention to crawl depth — important category and product pages should be reachable within 3 clicks from the homepage. Pages buried deeper than this receive less crawl attention from Google.
Product page optimisation
Product pages are the most important pages in an ecommerce store from an SEO perspective. Each product page should have: a unique, keyword-rich title tag that includes the product name and key descriptor, a unique meta description with a compelling reason to click, an original product description of at least 150-300 words (not the manufacturer's description), optimised image filenames and alt text, and product schema markup.
Customer reviews are also an SEO asset on product pages — they add fresh, unique content that includes natural language variations of your target keywords. Enable reviews on your product pages and make it easy for customers to leave them. A product page with 20 genuine reviews will typically outrank an equivalent page with no reviews, all else being equal.
Category structure and internal linking
Your category structure is the architectural foundation of ecommerce SEO. Categories should align with how customers search — not just how you think about your product range. Research the actual search queries customers use to find products in your niche and ensure your categories match those queries. A category page for 'men's running shoes' will rank better than one for 'footwear collection type A.'
Internal linking passes SEO authority from high-authority pages to product and category pages. Use breadcrumbs (which also improve user experience), cross-links between related products and categories, and links from blog content to relevant product pages. A blog article about 'how to choose running shoes' should link to your running shoes category — capturing informational search intent and guiding that traffic toward purchase.
How to measure SEO performance in your online store
The key SEO metrics for ecommerce are: organic sessions (overall and by landing page), organic revenue and conversion rate, keyword positions for target queries, Core Web Vitals scores and crawl health. Set up Google Search Console and GA4 e-commerce tracking to monitor these. Create a monthly SEO report that tracks trends over time — SEO improvements take 3-6 months to fully manifest in results.
Prioritise SEO improvements by revenue impact. Calculate which product categories generate the most revenue, identify which of those have the weakest SEO performance relative to their revenue potential, and focus your optimisation efforts there first. A 20% increase in organic traffic to your top revenue category will generate more revenue than a 200% increase in organic traffic to a low-volume category.
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