Ecommerce SEO is the same discipline as any other search work, applied to a site shaped very differently. An online shop has thousands of pages, most of them generated rather than written, and several problems that a brochure site never encounters.
This article covers the ones specific to shops.
Category pages matter more than product pages
Most shop owners optimise product pages first, and that is usually the wrong order. Look at how people actually search. Far more people type "waterproof walking boots" than any specific model name, and the phrase with the model name is often typed by somebody who has already decided.
A category page can rank for the broad phrase, and it shows a range rather than one item, so it converts a browsing visitor better. Consequently the first ecommerce SEO job on most shops is to give category pages real content instead of a grid of products and nothing else.
That does not mean burying the products under an essay. Instead, a paragraph above the grid explaining what the category covers, plus a longer section below it answering the obvious questions, does the job without getting in the way. None of this replaces the ordinary rules every site plays by, and a shop simply meets them differently.
Filters create thousands of addresses nobody wanted
This is the defining technical problem of ecommerce SEO. Every filter, sort order and page number can generate a new web address, and combinations multiply fast. A shop with six filters can produce more addresses than it has products.
None of those pages is worth indexing individually, and together they waste the attention a search engine gives your site. Worse, they compete with the clean category page you actually wanted to rank.
The usual fix has two parts. Tell search engines which version is the real one using a canonical declaration, and stop the pointless combinations being crawled at all. Which combinations to keep is a judgement call: a filter people genuinely search for, such as a colour or a size, can deserve its own indexable page. A sort order never does.
Ecommerce SEO and borrowed product descriptions
If you sell products other shops also sell, and you use the description supplied with them, your page is identical to dozens of others. A search engine then has to choose between them, and it will not choose the smallest shop.
Rewriting every description is unrealistic for a large catalogue. So prioritise. Typically that means the products that sell, the ones with margin, and the ones people search for by name. Meanwhile, leave the long tail alone until it earns attention.
What to add matters more than length. Who is it for, what it is not suitable for, what people ask before buying, and what you know from actually selling it. That last one is what nobody else has.
Products you stop selling
Every shop faces this and most handle it badly. A product page that has existed for years may have links, rankings and traffic. Deleting it throws all of that away and gives visitors a 404.
Better options depend on the situation. Where a direct replacement exists, redirect the old address to it permanently. A product that is coming back deserves to keep its page, with a line saying when. Failing both, redirect to the category rather than the home page, because that at least sends somebody somewhere relevant.
Redirecting everything to the home page is the one thing to avoid. It looks tidy, it helps nobody, and search engines increasingly treat it as a soft 404 anyway.
Ecommerce SEO and structured data
Product structured data lets a search result carry a price, availability and a rating. On a crowded results page those details take up space and attract the eye.
Two rules keep it safe. First, only mark up what the page actually shows. Second, keep it accurate as stock and prices change. Otherwise structured data claiming a wrong price, or a rating from reviews that are not on the page, becomes a machine readable statement that turns out to be false.
Speed matters more in ecommerce SEO than elsewhere
Shops are heavy. Product images, review widgets, chat tools, tracking for several advertising platforms, and a personalisation script all load on the same page.
Because the visitor is closer to spending money, the cost of a slow page is higher too. Compressing images and removing scripts nobody uses is the highest return work available on most shops, and it needs no rewriting at all.
Where to start with ecommerce SEO
Take your top ten categories by revenue rather than by traffic. Give each one real content. Check what your filters are generating and stop the pointless versions being crawled. Rewrite descriptions for your best selling products only. Then fix whatever is heaviest on the page.
That is a quarter of work with a measurable result, and it beats an audit that lists four thousand issues nobody will ever act on.
Frequently asked questions
What is different about ecommerce SEO?
The site shape. A shop has thousands of pages, most generated rather than written, plus filters that create endless addresses and product descriptions shared with competitors. The principles are the same as any search work; the problems that dominate are not.
Should I optimise category or product pages first?
Categories, in nearly every case. Far more people search for a type of product than for a specific model, and a category page shows a range, which converts a browsing visitor better. Product pages matter most for items people search for by name.
How do I handle filters in ecommerce SEO?
Declare a canonical version so search engines know which address is real, and stop pointless combinations being crawled at all. A filter people genuinely search for, like a colour or a size, can deserve its own indexable page. A sort order never does.
Can I use the manufacturer product description?
You can, and your page is then identical to dozens of others, so a search engine has to pick between them. Rewriting the whole catalogue is unrealistic, so rewrite the products that sell, carry margin, or get searched by name, and leave the rest.
What should I do with discontinued products?
Where a direct replacement exists, redirect the old address to it permanently. An item that is returning should keep its page, with a line saying when. Failing both, redirect to the category. Deleting the page throws away links, rankings and traffic built over years.
Should I redirect old products to the home page?
No. It looks tidy and helps nobody, and search engines increasingly treat mass redirects to a home page as a soft 404. Sending somebody to the relevant category at least puts them somewhere they might still buy something.
Is product structured data worth adding?
Yes, because it lets a result carry price, availability and ratings, which take up space and attract attention. It is one of the few ecommerce SEO jobs with a visible result. Only mark up what the page shows, and keep it accurate as stock changes.
Why does speed matter more for a shop?
Shops carry more weight per page: product images, reviews, chat, personalisation and tracking for several ad platforms. The visitor is also closer to spending money, so losing them costs more. In ecommerce SEO, compressing images usually returns the most for the least effort.