Starting out
Use the buyer's noun once, in the first line
Repeating a phrase eight times reads as desperation to a person and as nothing to a ranking.
Guides on Starting out: A rubric is a production tool before it is a quality claim, The brief is rarely the request, Getting the first booking, in order
Marketplace search is not web search, and the habits people import from one break in the other. Inside a platform, the index is small, the query set is narrow, and the ranking is mostly behavioural - so stuffing a phrase into your profile eight times buys you nothing and costs you the buyer who reads it.
The whole of the useful advice fits in a sentence: find the noun buyers actually type, use it once where it will be read, and spend the rest of your effort on the things ranking can measure.
Find the noun, do not invent it
You have a word for what you sell. The buyer has a different one, and theirs is the one in the search box.
The cheapest way to find it is to read the search suggestions the platform offers when you start typing, and to read the titles of the listings that are already ranking for what you do. If nine of the top ten say "review" and you say "critique", you have picked a synonym nobody is searching for and you will rank first for a query with no volume.
Do this once, write down the two or three phrases that come back, and stop. The vocabulary of a category moves slowly, and you will notice the shift from your enquiries long before any tool tells you.
Where the word actually has to appear
Three places, and they are not equally important.
| Location | Why it matters | How many times |
|---|---|---|
| Title or first line | Indexed heavily; also the only line most buyers read | Once |
| Category and tags | Structured fields; filters run on these, not on prose | Once each, exactly as offered |
| Description body | Weakly indexed; read by people who already scrolled | Once, naturally |
The structured fields do more work than the prose does, and they are the part people skip because they feel administrative. Picking the right category is worth more than any sentence you could write, because a filtered search excludes you outright rather than ranking you low.
The first-line piece covers the wording of the opening in detail, which is where the single highest-value use of the noun lives.
Why more repetition does not help
Two reasons, one technical and one human.
Technically, marketplace relevance scoring saturates fast. Term frequency has sharply diminishing returns after the first occurrence or two, which is the standard behaviour of the BM25-family ranking functions most search stacks are built on - Robertson and Zaragoza's 2009 monograph on the model is the reference if you want the underlying curve. Beyond that point additional mentions add very little, and some platforms actively penalise a listing that trips a spam heuristic.
Humanly, it is worse. A paragraph that repeats a phrase reads as written for a machine, and a buyer who notices that transfers the suspicion to the work. The signal you want is that a person who is fluent in this trade wrote it quickly and confidently.
Intent language beats keyword language
The phrase gets you into the result set. What gets you the click is language that matches why the person is searching.
Someone searching a format noun is usually carrying an unstated qualifier: fast, discreet, detailed, honest, cheap, or a person rather than a machine. Naming the qualifier in the same line as the noun is worth more than repeating the noun, because it separates you from the fifty listings that matched the same query.
"Written assessment, five axes, back within 24 hours" contains one keyword and three qualifiers. It will outperform a line containing four keywords and no promises, every time.
The related mistake is describing your process when the buyer is asking about their outcome - what buyers are really asking for works through the gap between the two.
What actually moves you up the results
This is the part that makes the keyword question smaller than it looks.
Marketplace ranking is dominated by things you do rather than things you write: completion rate, response time, recency of activity, review volume and score, and cancellation rate. Those are measurable and hard to game, which is exactly why platforms weight them. Copy is easy to change and therefore weak evidence, and every ranking system eventually learns to discount easy evidence.
The longer treatment of marketplace ranking has the full list. The practical implication is that an afternoon spent answering enquiries faster is worth more than a week spent rewriting a description, and it is not close.
A short checklist
Use the buyer's noun in the title. Fill every structured field the platform offers, accurately. Use the noun once more in the body, in a sentence you would have written anyway. Add a qualifier that is true and checkable. Then leave the copy alone and go and be fast.
Buyers themselves describe searching by format and filtering by risk rather than by phrasing, which is set out from their side here and is a useful corrective to the idea that anyone is reading closely. Where the vocabulary genuinely is standardised - the terms for the measurements and the scales themselves - the reference conventions are worth matching rather than paraphrasing, because a buyer searching a standard term will not find your private synonym. And a good deal of the generic query volume in this space now terminates at an automated scorer rather than at a person, which is why competing on the broadest, cheapest phrasing is a poor use of your one line.
The platform-specific fields, categories and search behaviour for a Rate Cock listing are described on its judges page, and they change more often than the general principles do.