Definition
Quality score is an estimate of ad/landing relevance and expected CTR used by some platforms. It can influence CPC and impression share.
How to use it
- Higher quality score often reduces CPC for the same position.
- Improve it by aligning keyword -> ad -> landing page intent and reducing bounce.
Common mistakes
- Optimizing quality score while ignoring conversion quality and profit.
- Using one landing page for many intents (relevance suffers).
Measured as
Measure Quality Score (search ads) with a fixed attribution window, conversion event, and spend basis before comparing campaigns or creative tests.
Misused when
- Optimizing quality score while ignoring conversion quality and profit.
- Using one landing page for many intents (relevance suffers).
Operator takeaway
- Higher quality score often reduces CPC for the same position.
- Improve it by aligning keyword -> ad -> landing page intent and reducing bounce.
- Use Quality Score (search ads) only inside a stable attribution rule, conversion definition, and time window so campaign comparisons stay honest.
- If performance changes, check whether the metric moved for a real business reason or because the measurement setup changed underneath you.
Next decision
- Decide which report owns Quality Score (search ads) before comparing campaigns, channels, or creative tests.
- If the number moves, check attribution, tracking, and conversion definitions before changing budget.