Knowledge base

Zero-result searches are a diagnosis point, not a score that has to be lowered at all costs.

An empty result set may indicate spelling, customer language, missing product data, filters, temporary availability or a real gap in the range.

Classify causes

Split spelling, synonyms, missing attributes, filters and missing assortment of each other.

A lot of volume is important, but a rare query with strong buying intent can also earn priority.

Use synonyms only for real language differences; do not mask a data problem or assortment gap with it.

Spelling, alternative queries, categories and appropriate alternatives can prevent a dead-end route.

A lower no-result rate is only gain if CTR and follow-up behavior also improve.

Recurring demand without supply can provide input for purchasing, content or taxonomy.