KnowledgePaid Media / Metric explained
Quality Score
QS · A Google Ads keyword diagnostic about expected ad and landing-page quality.
The metric, at your level
Understand QS in context.
Simply explained explanation
A Google Ads keyword diagnostic about expected ad and landing-page quality.
Professional explanation
A 1–10 keyword-level diagnostic drawing on expected CTR, ad relevance and landing-page experience.
Analytical explanation
Low Quality Score can signal a mismatch, but do not optimize the score in isolation or treat it as a direct auction-time input.
Technical explanation
Google Ads exposes keyword Quality Score as a diagnostic based on historical signals. Auction-time Ad Rank uses broader auction-specific signals.
Four complementary explanations — choose your level. Technical definitions are platform-specific where noted.
Calculation / definitionPlatform diagnostic, 1–10
↗ How to use it
Review its component diagnostics, not only the number.
⚠ Common interpretation mistake
Quality Score itself is not the direct auction formula.