A catalogue is reachable by the words it was structured for, and no others.
The recurring failure in ecommerce is not thin product copy. It is a structure built for how the business thinks, searched by people who think in categories.
The recurring pattern
5 failures · sector-specificThese are patterns, not a diagnosis. Which of them applies to a specific site, and in what order they are worth fixing, is what a reading against the 100-point scale establishes.
Why this sector fails this way
The structural reason, not the symptomEcommerce is the only sector where the same product exists in four systems at once — the site, the merchant feed, the structured data and the search index — and where nothing forces them to agree. Each was built by a different team at a different time for a different purpose, and each is individually correct. The disagreement between them is what costs money, and no single system reports it, because from inside any one of them nothing is wrong.
The second structural fact is that a catalogue generates URLs faster than any crawler will read them. A filter interface with six facets is not six pages; it is a combinatorial space, and crawl goes there instead of to the fifty category pages carrying the demand. This is why serious ecommerce technical work is mostly subtraction, and why it reads as counterintuitive to a team measured on pages published.
Where the work sits
Two of five services · one specialismTechnical SEO
Can these systems read the site at all — and does the site say the same thing twice?
Ecommerce SEO
Does the catalogue structure match how people shop it — and does the feed agree with the site?
Shopify SEO
Collection duplication, variant parameters and feed attribute coverage, at catalogue scale.
Common questions
Answer first, then the reasoningDo product descriptions have to be unique?
Unique enough to be worth indexing, which is not the same as unique per SKU. The manufacturer paragraph repeated across two hundred products gives a system nothing to prefer between them. The pages that earn demand are usually the categories above the products, and those are where original writing pays first.
Should faceted navigation be crawlable?
A handful of combinations, deliberately, and the rest closed. A filter interface with six facets is not six pages, it is a combinatorial space, and crawl goes there instead of to the fifty category pages carrying the demand. Which handful to keep is a judgement per catalogue, not a rule a plugin can apply.
What should happen to discontinued products?
Redirect to the closest live equivalent, or to the category, rather than letting them 404. A discontinued product that returns 404 discards every link and every ranking it earned. Deletion is the default in most platforms and it is almost never the right answer.
Build visibility
Seven questionsAtlas reads the site before the first conversation.