Official statement
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Google claims that an excess of informational content on an e-commerce category page can shift it into an informational classification rather than a transactional one, harming its ranking for purchase queries. A complete lack of text also poses problems for algorithms to understand the topic. The challenge: finding the optimal volume of contextual content that aids ranking without diluting the commercial intent of the page.
What you need to understand
Why does Google differentiate between transactional and informational pages?
Search engines classify content based on search intent. A transactional page addresses an immediate purchasing intent ("buy women's running shoes"), while an informational page aims to inform ("how to choose running shoes").
This classification directly impacts ranking in the SERPs. A page misclassified by the algorithm will appear for queries that do not match its true objective. If your category "Running Shoes" is perceived as informational, it will show up for advice queries rather than purchase queries — the exact opposite of what you want.
What causes a category page to shift into the informational realm?
According to Mueller, multiple encyclopedic paragraphs are enough to confuse the signals. Specifically, a block of 800 words explaining the history of running, the biomechanical criteria of running, the cushioning technologies — this type of content sends a "buying guide" signal rather than a "product catalog".
The issue lies not in the quality of the content, but in its ratio relative to commercial elements. A page where informational text occupies more visual space than the product grid risks being interpreted as a blog article rather than a transactional landing page.
What is the ideal volume of contextual content?
Mueller speaks of a "moderate volume" without giving a precise figure — obviously. Field experience suggests that between 150 and 300 words well-placed are generally sufficient to provide context without distorting the commercial intent.
This content should serve semantic understanding: which products are listed, for what use, what key characteristics. Not a lecture. The goal is to help Google match the page with the right transactional queries, not to create viral content.
- Intent signal: Google uses the text/commerce ratio to classify the dominant intent of a page
- Risk of dilution: too much informational content leads the page out of transactional SERPs
- Minimum required: zero content makes it difficult to understand the subject and differentiate between categories
- Optimal zone: moderate volume that contextualizes without turning the page into a buying guide
- Strategic placement: text content should visually remain secondary to product sheets
SEO Expert opinion
Is this recommendation consistent with field observations?
Yes, and it's even observable by analyzing the pages that actually rank for high-volume transactional queries. Amazon, Cdiscount, Zalando categories rarely contain more than 200 words of editorial content. Their structure heavily favors the product grid, filters, and reassurance elements.
Sites that over-optimize their categories with 1000+ words of SEO content often find themselves ranking for low purchase intent informational queries, or worse, cannibalizing their own blog articles. Traffic increases, but the conversion rate plummets — classic.
What nuances should be added to this rule?
The optimal volume varies depending on the maturity of the category and the competition. In technical niches (professional photo equipment, electronic components), a bit more context may be necessary to differentiate subcategories and clarify specs. 400 well-structured words remain acceptable if 80% of the page is still commercial.
Another nuance: the position of the text content matters just as much as its volume. A block of 300 words placed at the very bottom, after 50 products, does not have the same impact as a 300-word block at the top of the page that pushes the product grid below the fold. Google also analyzes the DOM structure and visual priority. [To be verified]: no official data on the relative weight of content position in intent ranking, but A/B tests show a measurable impact.
In what cases does this rule not really apply?
In emerging or ultra-specialized markets where users need education before purchase. Example: CBD, cryptocurrencies, new technologies. In these cases, a hybrid page may work — but be cautious, it’s a risky bet that requires testing.
Dual-intent category pages (transactional AND informational) exist, but they are rare and difficult to optimize. Generally, it is better to create two distinct pages: a pure product category, and an editorial buying guide that links back to it. Clarity > ambiguity.
Practical impact and recommendations
What should you do concretely on your category pages?
Start with an audit of your existing categories. Count the number of words of editorial content vs. the number of displayed products. If you have over 500 words of text for fewer than 20 visible products without scrolling, you are likely in the red zone. Also, analyze the queries for which these pages actually rank — if they mostly yield informational queries, you have your answer.
Gradually reduce the text volume by keeping only those elements that aid the understanding of the scope: what category, for whom, what key features differentiate the listed products. Remove anything that pertains to advice, history, or storytelling — that belongs in a blog or a separate buying guide.
What mistakes should you absolutely avoid?
Don't fall into the opposite trap: removing all text content out of fear of diluting intent. A category with no text at all poses two problems. One, Google struggles to understand what differentiates your categories from each other if only the product titles change. Two, you lose the opportunity to include semantic vocabulary that assists in matching with long-tail queries.
Another classic mistake: placing text content at the top of the page in a massive block that pushes the products down. Users come to buy, not to read. If your contextual content occupies the first two screens, you send an informational design signal. Instead, try a short intro (50-100 words) at the top, with the rest of the context at the bottom or in an accordion.
How can you check if your categories are well classified?
Use Search Console to analyze the queries generating impressions/clicks for each category. If you see mostly queries like "buying", "price", "cheap", "best", that’s a good sign. If you rank for "how to choose", "guide", "comparison" — while that’s not the goal of the page — you have a classification problem.
Also, monitor the conversion rate by type of landing. A category attracting a lot of informational traffic will inevitably have a catastrophic conversion rate. This impacts your e-commerce metrics and can even send negative quality signals if the bounce rate skyrockets (user looking for a guide lands on a catalog, leaves immediately).
- Audit the ratio of editorial words to the number of products on your main categories
- Analyze ranking queries in Search Console to identify intent classification problems
- Reduce text content to a maximum of 150-300 words, focused on scope understanding
- Place contextual content in a short intro or at the bottom of the page, never in a massive block at the top
- Remove all advice/guide/storytelling content from category pages (migrate to blog/guides)
- Test and measure the impact on transactional positions and conversion rate
❓ Frequently Asked Questions
Combien de mots maximum sur une page catégorie e-commerce ?
Où placer le contenu texte sur une page catégorie ?
Une catégorie sans aucun texte peut-elle bien ranker ?
Comment savoir si ma catégorie est classée informationnelle au lieu de transactionnelle ?
Faut-il supprimer le contenu SEO existant sur mes catégories ?
🎥 From the same video 14
Other SEO insights extracted from this same Google Search Central video · duration 38 min · published on 14/09/2020
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