Ozon Card SEO: Rich Content Indexing, Category Depth and the 5 Ranking Levers

Sellers who work on both Wildberries and Ozon keep making the same mistake: they port their keyword set from one platform straight to the other. Same queries, same description, near-identical characteristics. The logic of "it worked for us on WB, so it will work on Ozon" sounds reasonable. In practice, a card ported that way gets stuck at position 50–80 on Ozon and never climbs.

The reason is simple. Ozon is a different search engine with different ranking mechanics. The description is longer, but structural requirements are stricter. Rich content has its block text indexed — anything placed in Rich content text fields becomes part of your SEO (while text baked into an image only is not read by search). Categories go deeper than on WB, and the wrong subcategory visibly cuts traffic. The algorithm understands synonyms and slang better than WB, but punishes copy-paste across cards in the same product line far more strictly.

This Hub is a technical breakdown of SEO specifically on Ozon. The parent SEO Pillar guide describes the general methodology: the 5 stages of SEO, the 6 layers of an MPO audit, cross-platform strategy. Here it is Ozon only: the 5 card levers, 3 typical mistakes, the anatomy of Rich content indexing, and a self-check list.

The guide is written for Ozon sellers turning over 2M ₽/month and up, agencies running client Ozon accounts, and in-house brand teams for whom Ozon is a strategic channel.

Three platforms, three search engines with different mechanics. Porting a keyword set straight across is a common, expensive mistake.

Ozon. Longer description than WB (up to 6,000 characters). Rich content has its block text indexed — whatever sits in Rich content text fields (headings, paragraphs, captions) enters the index; text baked into an image only is not read by search. Categories are deeper (5–7 levels instead of WB's 3–4), and landing in the wrong subcategory visibly cuts traffic. Product attributes work as filters — a blank attribute means the card does not show to shoppers filtering by it. The algorithm understands synonyms better, but strictly penalizes copy-pasted descriptions across SKUs.

Wildberries. A hard 60-character title limit (Ozon is more forgiving). Text indexing only — Rich content is not read. Categories are shallower, Subject ID is assigned automatically and is harder to correct. Full breakdown in the Hub guide "Wildberries card SEO".

Yandex Market. There is a single product card, and the seller offer sits separately. Part of the traffic comes from general Yandex search, which makes external SEO weight matter. Price and seller rating are part of ranking.

Now on to Ozon.

Ozon does not index "the card as a whole" — it indexes specific fields, including Rich content text blocks. That changes the entire optimization logic.

Lever 1. Description — 6,000 characters built for structure, not for spam

An Ozon description runs up to 6,000 characters, which is more than Wildberries allows. But a bigger limit is not an invitation to spam. The Ozon algorithm is pickier about structure: it rates long "walls of text" with no paragraph or subheading breaks lower than a short but well-structured description.

A healthy Ozon description structure:

• Hero paragraph — 150–250 characters. The first thing a shopper sees on the card without expanding it. Put the main benefit and the priority keyword here.
• Composition / material — 200–400 characters. Often carries long tails about ingredients: "paraben-free", "SLS-free", "hypoallergenic".
• How to use it — 300–500 characters. Handles the "I am not sure how to use this" objection.
• Technical specifications — 300–500 characters. Dimensions, volumes, compatibility.
• Advantages vs competitors — 200–400 characters. What makes the product better.
• Answering objections — 300–500 characters. "Is it suitable for…", "can I…", "how do I spot a counterfeit".
• Closing CTA paragraph — 100–200 characters. A call to action for those who read to the end.

A unique description for every SKU is mandatory. Ozon penalizes copy-paste across cards in the same line more harshly than WB: duplicate cards can be dropped from the index entirely for 7–14 days pending moderation review. How to build a description for both SEO and conversion is covered in a separate guide.

The Ozon algorithm handles synonyms and slang well. It recognizes "serum" and "essence", "cream" and "balm", "trimmer" and "hair clipper" as closely related concepts. There is no need to load the description with every variation — two or three synonyms in natural context are enough. This does not work on WB, where you need the keyword repeated literally.

Lever 2. Rich content — extra text in the index

The key difference between Rich content on Ozon and on WB is that its text is indexed. Text placed in Rich content text blocks (headings, paragraphs, captions) is added by Ozon to the card's SEO index on a par with the description. One important caveat: it is specifically the Rich content text layer that gets indexed, while text baked into an infographic image only is not read by search — only the shopper sees it.

What this gives you:

• Extra keywords in the card's index. Whatever did not fit into the description can go into Rich content text blocks and still carry SEO weight.
• Reinforcement of priority keywords — repeating a keyword in Rich content text creates an additional relevance signal.
• CTR gains alongside SEO — Rich content text blocks work for conversion (the shopper reads them) and for indexing (the algorithm reads the text) at the same time.

What you need to know about Rich content text:

• Put keywords in text blocks, not just in images. Text in Rich content text fields is indexed; text baked into an image is not read by search. Duplicate your key phrases into the text layer.
• Text on infographics is for the shopper. It boosts conversion (CTR, retention) but never reaches the SEO index, so keep it readable: contrasting background, standard typeface, large size.
• Structure beats volume. The algorithm rates Rich content broken into headings and paragraphs higher than a wall of text.
• No copy-paste across SKUs. Duplicate Rich content across cards in the same line is penalized by Ozon the same way a duplicate description is.

Sellers who know how to use Rich content on Ozon gain 20–30% additional visibility on the keywords they moved into Rich content text blocks. It is one of the main things that separates an Ozon card from its WB counterpart.

Lever 3. Category and subcategory — deeper than it looks

The Ozon catalog is a tree with 5–7 levels. "Beauty and health to Cosmetics to Facial skincare to Creams to Day creams to Moisturizing to With hyaluronic acid". A card must land in the correct leaf node, otherwise:

• Shoppers filtering by narrow categories will not see it.
• The algorithm will not associate it with relevant competitors in the subcategory.
• "Similar products" recommendation shelves will leave it out.

Symptom of the error. The card looks relevant, but visibility on priority keywords is unnaturally low, competitors in the same niche are growing and your card is not. You open the breadcrumbs in the navigation and find that the card is attached to a parent category rather than a leaf subcategory.

How to fix it:

1. 1Check the category of top-10 competitors for your priority keywords. Ideally 3–5 competitors.
2. 2Open your card and go to the "Categories" section in the seller account.
3. 3Reassign the category to the same leaf subcategory your competitors sit in.
4. 4Fill in the additional characteristics specific to that subcategory.

After a category reassignment, the algorithm recalculates card relevance over 5–7 days. That alone is often enough for a card to climb 20–40 positions on priority keywords with no other changes.

Lever 4. Attributes as filters

Attributes on Ozon are the filters in search results, the same as on Wildberries, but there are considerably more of them in every category. A typical Ozon category has 30–60 attributes: material, country of origin, color, size, volume, skin type, age, effect, composition, brand, series, format, packaging and so on.

The logic is the same as on WB: the shopper ticks filter boxes and search results drop the cards where the corresponding attribute is blank. On Ozon filters get used even more actively than on WB — the desktop audience is more used to detailed filtering.

Basic rules:

• Fill in every available attribute, not just the mandatory ones. On Ozon there are usually 8–15 mandatory attributes and 15–45 optional ones. Filling in the rest expands your reach into filter traffic.
• Attributes must match the description. If the description says "paraben-free cream" while the attributes say "composition: parabens", the card loses both in search results and in ranking.
• Category-specific attributes matter most. For cosmetics: skin type, age, effect. For apparel: material, size, fit. These are the attributes used in filters most often.

Most Ozon cards that come to us for an audit are 50–60% complete on attributes. Getting them to 90%+ often adds 15–25% visibility with no other changes.

Lever 5. Behavioral signals plus bid

Ozon is the only one of the three major platforms where the bid (CPM) partly participates in organic ranking, alongside behavioral signals. That is a quirk of the algorithm, and it breaks the classic "organic vs ads" split.

What it means in practice:

• CTR in search results vs the category average CTR is a prerequisite for growth. Low CTR means the algorithm cuts reach, and the bid will not compensate.
• Cart and order conversion are counted in the same model as the bid. A card with a high bid but low conversion ranks worse than one with an average bid and high conversion.
• Ad campaigns reinforce organic performance if the card is solid to begin with. If the card is weak, the ad bid just burns budget.

That is why SEO on Ozon is preparation for advertising, not an alternative to it. First bring the card up technically (description, Rich content, category, attributes), then reinforce with ads. Advertising a raw card costs 2–3 times more than it should.

After 300+ Ozon card audits, three mistakes recur almost every time. Fixing only these often adds 20–40% visibility within a month.

Mistake 1. Porting a Wildberries keyword set without adaptation

The most common one. The seller copies the description from the WB card, pastes it into Ozon, and swaps out a few words. The problem: the WB keyword set was built for WB mechanics. Ozon shopper queries differ from WB shopper queries even within the same category — a different audience profile, different phrasing conventions, different priority synonyms.

What to do: build the semantic core for Ozon separately. Use MPStats, Moneyplace or Ozon Seller's own analytics. Do not cross-pollinate directly from WB — there will be overlap (shared category keywords), but 30–40% of the keyword set will be unique to Ozon.

Mistake 2. Keywords baked into images instead of Rich content text

The seller commissions beautiful infographics from a designer, all the key text gets baked into the images, and then they wait for an SEO effect. There is none, because search does not read text off images — it indexes only the Rich content text layer:

• Keywords are drawn on the banner but never duplicated into text blocks.
• The description was never extended with the phrasing from the infographic.
• As a result, all the "key" text lives only inside the image.

The designer sees "beautiful". The algorithm sees "an image with no text". Only the description enters the index, and Rich content works for CTR alone, not for SEO.

What to do: duplicate the key phrases from the infographic into Rich content text blocks (those are what search indexes) and keep the image itself readable for the shopper. Text on the image is for conversion; text in Rich content fields is for SEO.

Mistake 3. The card attached to a parent category instead of a leaf one

The most "expensive" mistake in terms of lost revenue. While creating the card, the seller picks the category "Cosmetics to Creams" but never drills down to the deep subcategory "Face creams to Day to Moisturizing". As a result the card lands in the broad catalog but is absent from the narrow subcategories.

Symptoms: positions on high-frequency keywords look normal (for the broad category), while narrow, specific ones are missing entirely (the card is not in the right subcategory).

What to do: compare your card's category against top competitors for your priority keywords. If yours is broader, reassign it to the exact leaf subcategory through the seller account.

A minimum self-check for a single card before commissioning an audit or promotion.

Step 1. Check the category (5 minutes). Open your card and look at the breadcrumbs at the bottom of the page. In parallel, open 3–5 top-10 competitors for your priority keyword. Does the leaf category match? If competitors sit in "Face creams to Day to Moisturizing" while you sit in "Cosmetics to Creams", you are losing a significant share of potential traffic.

Step 2. Attribute completeness (5 minutes). Open the "Characteristics" section on the card. Count how many attributes are filled in and how many are empty. If more than 30% are blank, filter traffic is blocked. The ones that matter most: material, country, size, color, effect, composition, type.

Step 3. Description structure (5 minutes). Look at the description through a shopper's eyes. Are there clear blocks (Hero to Composition to How to use to Advantages to FAQ)? If the description is one solid slab of text with no structure, the algorithm rates it lower. Rewrite it with subheadings.

Step 4. Rich content text (5 minutes). Open Rich content on the card. Check whether the key phrases are placed in Rich content text blocks, or exist only inside images. If the keywords live only in the infographic, search cannot see them — duplicate them into the text layer.

Step 5. Compare SEO with a top competitor (5 minutes). Copy the description of your nearest top-3 competitor. Compare it with yours. Which keywords do they have that you do not? Which synonyms do they use that are missing from your description? That list is your "map of gaps" for the next update.

Step 6. Position dynamics (5 minutes). In MPStats or Moneyplace, open the position history for your card over the last 30 days. Rising, flat, or falling? Which keywords are holding, which have slipped? A drop of more than 10 positions in a month calls for a full audit.

The output is a rough diagnosis: healthy SEO (0–2 problems), average (3–5 problems), weak (6+ problems).

Stable, non-seasonal categories. Every 3–4 weeks. Less often and you lose traffic on new queries and seasonal shifts.

Seasonal categories at peak. Every 2 weeks. At peak, queries change faster.

After a Rich content update. Give the algorithm 5–7 days to re-index. Do not change Rich content and the description at the same time — it will be harder to tell what actually worked.

After a category change. Relevance recalculation takes 5–7 days. Positions may drift during that window, which is normal.

Trusty forseller is a free AI tool for analyzing marketplace cards. As of 2026-05-12 it works with Wildberries only. Ozon support is in progress.

What is available for an Ozon audit right now:

• A standard MPO audit with an expert and access to your ad account. It covers all 6 diagnostic layers, including an SEO breakdown for Ozon specifics. Paid.
• A free card review on a 30-minute consultation. No account access, limited to what is visible from outside the card.

If you have cards on both Ozon and Wildberries, you can use forseller on the WB cards as a pilot diagnosis, judge the quality of the AI analysis, and in parallel commission a full MPO audit for the Ozon cards with an expert.

Related reading: variations (aspects) on Ozon, Ozon content rating, moving cards between platforms.

Related reading: Product positions on Ozon.

"Why bother with Rich content if the description is already long?" Rich content adds extra SEO weight: its block text is indexed. This is not a duplicate of the description but an extension of the card's index. A 20–30% visibility gain is the typical result of good Rich content on Ozon.

"Can I use one description for both Wildberries and Ozon?" Technically yes. Effectively no. Shopper queries differ, description lengths differ (WB's limit depends on the category, Ozon allows up to 6,000), and Ozon indexes Rich content. Porting it straight across is a common mistake: our audits show 30–40% of potential traffic lost.

"How often can I update a description on Ozon?" Safely: every 2–4 weeks. More often and the algorithm treats the card as unstable and lowers its priority for 1–2 days after each update.

"What matters more on Ozon — the description or Rich content?" The description is the foundation; without it the card is not indexed. Rich content is reinforcement. No amount of Rich content saves a weak description. Description first, Rich content second.

"What if the card refuses to move into the right category?" Ozon is sometimes stubborn, especially when the new category differs sharply from the original one. In difficult cases, file a support ticket with a rationale (links to competitors in the target category).

"Does Ozon SEO affect advertising?" Directly, yes. A card with solid SEO and behavioral signals gets a lower CPM in ads and higher impression priority. Scaling through ads on raw SEO costs 2–3 times more than it should.

"Does SEO work for FMCG and food products?" Yes, with allowances for restrictions in regulated categories. Part of the SEO vocabulary may be off limits (property claims, medical effects). We discuss this at kickoff.

• Marketplace card SEO and audits — the parent Pillar. Full methodology for building a keyword set, the 5 stages of SEO, the 6 layers of an MPO audit, cross-platform strategy.
• Wildberries card SEO — the Hub for the neighboring platform. The 60-character limit, Subject ID, characteristics as filters. If you work on both WB and Ozon, you need both.
• Marketplace promotion — the parent Pillar on promotion. How SEO fits into an 8-module MPO system.
• Buyouts and reviews — the parent Pillar on buyouts and reviews. Without behavioral support, SEO delivers 20–30% of its potential.

If you have an active Ozon card, work through the 6-point check list from the section above. Most problems surface within 30 minutes. If you also have Wildberries cards, run the free forseller AI audit on a WB SKU code, get the PDF in 60 seconds and judge the quality of the analysis for yourself. Ozon support in forseller is in progress.

If the task is broader — a full Ozon SKU line, a brand relaunch, cutting ad spend share (DRR) — get in touch for a consultation or take a look at done-for-you card SEO. Within a standard MPO audit we go deeper on the SEO block with an Ozon-specific angle: category verification, a Rich content text audit, attribute completeness, and a comparison against competitors in the subcategory.