SEO for online stores: categories, products and filters
E-commerce SEO has its own challenges: thousands of similar pages, filters and changing stock. Here is how to structure a store that ranks.
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- Reading time
- 1 min read
Key takeaways
- Category pages usually target the most valuable searches; give them real content.
- Control filter and parameter URLs so search engines don't waste time on duplicates.
- Write unique product descriptions and handle out-of-stock items carefully.
Online stores can have thousands of pages that look alike. Without a clear structure, search engines waste time on duplicates and miss the pages that matter. Good e-commerce SEO starts with architecture.
Category pages are your main landing pages
Many valuable searches are broad: "women's running shoes", "organic coffee beans", "office chairs". These usually match category pages better than individual products. Make categories strong:
- A clear heading and a short, useful introduction
- Well-organised subcategories
- Helpful buying information, placed so it doesn't push products too far down
- Internal links to related categories and guides
Product pages
- Unique descriptions: manufacturer text appears on many other sites. Write your own, covering benefits, specifications and use.
- Descriptive titles: include the product type, brand and key attribute, such as size, colour or model.
- Image alternative text that describes the product.
- Product structured data with price, currency and availability that match the page.
Filters and parameters
Filters for size, colour and price can generate huge numbers of URL combinations. Decide which filtered pages deserve to be indexed, usually combinations people actually search for, such as "black leather office chairs". For the rest:
- Use canonical tags pointing to the main category
- Avoid linking to infinite combinations in crawlable links
- Keep sorting and session parameters out of the index
Pagination
Large categories span several pages. Make sure every page is linked and crawlable so products deep in the list are discovered.
Out-of-stock and discontinued products
Keep temporarily unavailable products live with a clear message and alternatives. For permanently discontinued products, redirect to a close replacement or the category where it makes sense.
Site speed
Large product images, apps and tracking scripts slow stores down. Optimise images and audit third-party scripts regularly.
Content beyond products
Buying guides, comparisons and how-to articles capture research-stage searches and link naturally to categories and products.
Our SEO service includes e-commerce audits, and our e-commerce development team builds stores with this structure from the start.
Frequently asked questions
Should out-of-stock product pages be removed?
If the product will return, keep the page live with a clear stock message and alternatives. If it's gone permanently, redirect to the closest replacement or category, or return a 404 if nothing fits.
Do product reviews help SEO?
Genuine reviews add useful, unique content and can make pages eligible for review rich results. Never fabricate them.
