Quality Score is Google's 1-10 rating of the relevance and quality of your keywords, ads, and landing pages. A score of 10 means you are paying close to the minimum possible cost per click. A score of 3 means you are paying up to 400% more than competitors with better scores for the same position. We have audited hundreds of Google Ads accounts, and poor Quality Score is the single most common source of wasted spend.
The Three Pillars
Google calculates Quality Score from three components: Expected Click-Through Rate, Ad Relevance, and Landing Page Experience. Each is rated Below Average, Average, or Above Average. A low overall score almost always traces back to one of these three being Below Average.
Fixing Expected CTR
Low eCTR usually means your ads are not compelling enough to click, or your keywords are too broad. Start by reviewing your Search Term Report β if your keywords are matching to irrelevant queries, add negatives aggressively. Then rewrite your ad copy to directly address the specific intent of the keyword.
Fixing Ad Relevance
Ad Relevance measures how closely your ad copy matches the keyword's intent. The fix is tighter ad groups β what we call Single Keyword Ad Groups or at most 3-5 tightly related keywords per group. Each ad group gets ads written specifically for those keywords. The keyword should appear in the headline.
Fixing Landing Page Experience
This is the most impactful and most neglected component. Google evaluates your landing page for relevance, load speed, mobile experience, and whether the page delivers what the ad promised. A generic homepage almost always rates Below Average. Build specific landing pages for each ad group, ensure they load under 2 seconds on mobile, and make the conversion action impossible to miss.
The Result
In our last 20 Quality Score optimization projects, the average CPC reduction was 34%. For clients spending $10,000/month on Google Ads, that is $3,400/month recovered β without reducing reach or changing bidding strategy.
