Marketplace search that stopped ranking junk first

Search returned expired listings because recency beat availability. Sellers with empty warehouses still sat on page one. Buyers learned to add 'in stock' to every query, which is a product failure with extra typing.

We mixed in stock, seller score, and a synonym list from actual queries. Then we staffed a weekly review of empty results until the curve bent.

Read the zero-result log

The most expensive click is the one that finds nothing. Empty queries are a product backlog, not a sad chart. We promoted synonyms, fixed categories, and killed ghost inventory every week.

Merchants got a simple health score: photos, stock freshness, response time. Ranking without a lever they can pull is a black box they will not trust.

Relevance is operations

Search quality is not a one-time model drop. It is a desk that reads logs, a ranking recipe you can explain, and the courage to demote junk even when it is new.

When junk stopped ranking first, conversion followed. Buyers did not need a lecture. They needed the thing they typed.