Treat it as a diagnostic
It is not itself an auction input, but it points to useful problems. Tightening the match between keyword, ad and landing page often helps both relevance and conversions.
Related service: Google Ads management.
What is Quality Score?
Definition
Quality Score is a 1 to 10 Google Ads diagnostic based on expected clicks, ad relevance and landing page experience.
Also known as:ad quality
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