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The Gloria JournalSEO

Ecommerce category pages: content, filters and SEO

Laptop on a wooden table displaying capsules and tablets

A category page exists so that someone can compare several products and settle on one. Its SEO should support that job: a selection that makes sense, the information people need in order to choose, and links that open the rest of the catalogue. A long block of text pushed under the product grid fixes neither a navigation problem nor an out-of-stock problem.

Which categories deserve the work depends on your business. A category is worth the effort when it answers a real search, holds products you can actually ship, and carries a margin you can use. Search volume alone does not prove that, and neither does the cost of a click in an advertising auction.

Most category work goes wrong for ordinary reasons. Two pages compete for the same query. Half the range sits behind a "load more" button that leads nowhere a crawler can follow. Filters quietly generate more URLs than anyone has ever inventoried. Name those problems before you write a line of copy.

Choosing which categories to work on

Put the queries you can see in Search Console next to your catalogue, your sales and the questions customers actually ask before they buy. For each category, state its function in one line: a broad selection, a technical sub-family, a use case, or a brand. Two pages that cover nearly the same ground split the editorial effort without helping the buyer decide.

Ranges built on technical criteria need more care than a simple listing. A selection of pumps, for example, may hinge on the liquid being moved, the duty expected of the machine, and figures documented by the manufacturer. Those criteria come from product documentation and from what your customer service already knows, not from a keyword tool.

Build a scoping sheet first

  • The main need the category answers.
  • Products genuinely available, and the variants offered.
  • The criteria that actually separate one reference from another.
  • Common pre-purchase questions and known reasons for returns.
  • The existing page to keep, and the links that currently lead to it.
  • The outcome you intend to follow once the page changes.

The sheet stops you from picking a category only because a tool assigned it a high score or a large "potential". Your own commercial data supplies the context that external estimates cannot see: stock, margin, supplier reliability, seasonality.

Writing to support the decision

The top of the page should explain the selection and then get out of the way. A short introduction can set the boundaries of the range and name what is excluded. Longer explanations belong next to the criterion they describe, or in a buying guide linked from the category.

Show the differences that change a decision: dimensions, compatibility, material, power output or intended use, depending on the product. Take technical characteristics from manufacturer documentation rather than from competitor copy. Anything touching safety, a standard or a certification deserves a specific check before it is published.

Word counts and vocabulary scores are not requirements

Google states no preferred word count. A category therefore has no arbitrary minimum length to reach. A semantic tool may usefully surface a question or a term you forgot, but its score is not a requirement issued by a search engine. Treating it as one produces padded pages that bury the products.

Use a page title that describes the selection, a readable H1, and subheadings that match the questions you answer. Google's documentation on title links explains that several elements of the page can feed the title shown in results. Repetitive headings stuffed with variants of the same keyword help nobody. If your category copy is part of a wider editorial plan, keep it consistent with the rest of your SEO content rather than writing each page in isolation.

A FAQ block can answer genuine purchase questions. Its value is that it helps the reader; it does not buy you an enhanced appearance in search. The Search Central updates record the removal of FAQ rich results on 7 May 2026, so that block should never be sold as a route to richer listings.

Making every product reachable

Google recommends a navigation that connects categories and products. An important product should be discoverable without depending on a query typed into your internal search box. Check the links coming from the menu, from sub-categories and from listings. Discovery problems often show up first as indexing gaps rather than as ranking drops.

Pagination and the "load more" button

Visitors may prefer progressive loading, but a crawler still has to reach the rest of the catalogue. Google's guidance on pagination recommends giving each page in the series its own URL, joined by real links. Each paginated page should also carry its own canonical; pointing them all at page one is not the rule to apply.

Test the discovery of a product placed beyond the first screen and beyond the first page. Then test the return journey from a product page: does the customer land back where they were, with their criteria intact? A path that forces someone to rebuild the whole selection makes comparison harder; that friction shows up in a UX audit long before it shows up in your reporting.

Handling filters according to their usefulness

Filters make selection easier, and their combinations can generate an enormous number of URLs. Separate the selections you genuinely want to offer as entry pages from the variants that only exist to sort or narrow a single visit.

Google's documentation on faceted navigation separates the URLs worth making crawlable from those where crawling adds nothing. Before you write a rule, inventory the parameters, the number of combinations they produce, and the products each one displays.

A stable selection that matches a real demand may deserve a dedicated page. A price sort, or a combination that returns nothing, needs different handling. Do not block every parameter without that inventory: you may cut off the discovery of pages that matter.

Canonical tags, the noindex directive and robots.txt do different jobs. A canonical signals a preferred version among similar pages. A crawl block can prevent Google from ever reading a directive placed inside the page. Have the whole approach reviewed before you change catalogue-wide rules.

Improving speed without over-engineering the site

On a category page, look first at images, filters and the scripts being loaded. Reserve space for visuals so that content does not jump as the page renders. Test how the page responds when someone sorts the list or opens the filter panel on a phone, not only how fast it loads the first time.

The current Core Web Vitals are LCP, INP and CLS. The thresholds for a good experience are 2.5 seconds, 200 milliseconds and 0.1 respectively, assessed at the 75th percentile. INP replaced FID. These metrics describe aspects of the experience; they do not predict a conversion rate.

A progressive web app or an AMP version is not a prerequisite for optimising a category. Choose technical changes according to the problems you actually observe and the cost of maintaining them. Cutting image weight or removing a script nobody needs is often a better use of a budget than re-architecting the front end. Verify the effect when you next review site speed.

Connecting the category to the rest of the site

A buying guide can point to the matching selection, and a product page to its family. Give each link a label that explains where it goes. Avoid dropping the same category link into every article regardless of subject: that pattern dilutes the signal and irritates readers.

External mentions can introduce a selection to an audience you do not reach yourself. There is, however, no number of referring domains that secures a ranking for a category. Judge relationships and the content offered against Google's policies on links intended to manipulate results.

Measuring what the category contributes

Fix a comparison period and write down what else changed during it: prices, stock levels, campaigns, season. Follow the page as an entry point in Search Console, then follow the interactions and orders your measurement setup can genuinely observe.

Stage Useful indicator Limit to keep in mind
Discovery Impressions, clicks and queries for the category Shifts in demand and in the type of result shown
Selection Access to product pages, filter usage Events must be correctly defined and tested
Purchase Orders, net revenue and margin Returns, cancellations and attribution

Average basket value is an amount per order; it is not the same thing as revenue per visitor. To approach a return on investment, compare the costs you committed with the additional contribution in margin you estimate, and state plainly how you arrived at that estimate.

Start with one category whose problems you have already identified. Check the corrections, watch what happens over a full comparison period, then extend whatever proved useful to comparable categories. Documenting that progression gives you firmer ground for the next decision than any automatic projection of traffic or sales.

Common questions

How many words should a category page have?

There is no minimum set by Google. Add what a buyer needs in order to understand the selection and choose within it, and keep that text from pushing the products far down the page.

Should every filtered page be indexed?

No. Separate the selections that work as entry pages from sort variants and combinations with no value of their own. The decision needs an inventory of your parameters and of the role each one plays in making the catalogue discoverable.

Should paginated pages canonicalise to page one?

Google recommends that each page in a paginated series carries its own canonical. Later pages show different products and should not be treated automatically as copies of the first one.

Is a "load more" button enough for Google to find the products?

Loading triggered by a button is not sufficient on its own. Provide crawlable URLs and real links so that products beyond the first set displayed can still be reached.

Can we add a FAQ to a category page?

Yes, if the answers genuinely help the decision and stay visible on the page. FAQ rich results were removed by Google on 7 May 2026, so the block should not be presented as a way to obtain that display.

How do we check that the optimisation improved sales?

Follow discovery, access to product pages and orders across a comparable period, accounting for stock, pricing and campaigns. Clicks alone do not establish that a change in margin was caused by the work you did.

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