Google Ads Quality Score is a 1-to-10 rating for each Search keyword that signals ad, keyword, and landing-page quality. Google calculates it from expected clickthrough rate, ad relevance, and landing page experience, and that quality helps decide placement and cost. According to Quality Score definition in Google Ads Help, higher scores signal more relevant experiences for searchers. Use it to spot weak spots, not as a final grade.
Table of Contents
- What the score tells you
- How Google grades the three parts
- Why quality changes rank and price
- What to fix instead of chasing 10s
What the score tells you
Think of the number as a diagnostic flag for one keyword, not a grade for your account. A 9 means Google sees a highly relevant chain from query to ad to page. A 4 means one or more links in that chain looks weak.
For example, a bakery bidding on "gluten-free birthday cake" needs an ad that names that exact offer. If the ad talks only about general pastries, relevance drops. If the click lands on the homepage instead of the cake page, the experience drops further.
How Google grades the three parts
Google Ads Help breaks Quality Score into expected clickthrough rate, ad relevance, and landing page experience. Expected clickthrough rate estimates how likely your ad is to get clicked. Ad relevance checks how well the ad matches search intent.
Landing page experience checks whether the page is relevant and useful after the click. Each part gets Above average, Average, or Below average. Google makes that call by comparing you with other advertisers on the same or similar keywords over about the trailing 90 days.
Why quality changes rank and price
Quality matters because placement is not set by bid alone. According to Google Ads Help in its overview of Ad Rank, rank also weighs ad quality, page quality, thresholds, competition, context, and assets. A more relevant ad can therefore beat a higher bid for the same slot.
That is why stronger relevance can lower what you pay. When your chain is tighter, you can outrank a higher bidder and pay a lower actual cost per click. Searchers also see ads that match what they asked for.
What to fix instead of chasing 10s
Do not chase a perfect 10. Google states in its note on ad quality that the visible 1-to-10 score is not used directly in each auction. Each auction runs its own real-time quality calculation.
Google advises fixing parts rated Average or Below average with tighter keyword-ad-page alignment, as detailed in its guide to ad relevance and landing pages. Start with the weakest component first: For a family lawyer bidding on "child custody consult," that means a custody ad and a custody consult page, not a general services page. Small alignment changes like this often move the component that was holding the score down.
- match one intent per ad group, not mixed offers
- mirror the keyword intent in the ad headline
- make the landing page answer that same intent fast
