What Is Google Ads Quality Score and How Do You Improve It?

Google Ads Quality Score is a diagnostic metric Google uses to rate the relevance and quality of your keywords, ads, and landing pages. It runs on a scale of one to ten, and a higher score tells you that your ad experience matches what searchers are actually looking for. It matters because Quality Score directly influences both your ad rank and how much you pay per click.

Many advertisers focus on bids as the main lever for ad performance, but Quality Score can be just as powerful. A score of eight or nine can let you outrank a competitor who is bidding more money, while also paying less per click. This guide explains how Quality Score is calculated and the specific changes that tend to move the needle.

How Quality Score is calculated

Google considers three components when calculating Quality Score: expected click-through rate, ad relevance, and landing page experience. Each one is rated as above average, average, or below average compared with other advertisers targeting the same keyword. The overall score from one to ten is a weighted combination of these three signals.

Expected click-through rate predicts how likely someone is to click your ad when it appears for a given keyword, based on historical performance. Ad relevance measures how closely your ad copy matches the intent behind the keyword. Landing page experience reflects how useful, relevant, and trustworthy your destination page appears to both users and Google.

Quality Score is reported at keyword level, but it is actually calculated fresh each time an auction runs. That means changes you make today can start affecting performance within days, though you may not see the reported score update immediately in the interface.

Practical ways to improve your score

The single biggest lever for most accounts is tighter keyword grouping. When you bundle dozens of loosely related keywords into one ad group, the ad copy can never be highly relevant to all of them. Break your campaigns into tightly themed ad groups — sometimes just two or three keywords per group — so you can write ads that speak directly to each search query.

Once your ad groups are tighter, rewrite your ads to mirror the keyword in the headline. If someone searches for "emergency plumber Norwich", an ad that opens with those exact words will almost always outperform a generic headline. Google rewards this relevance with a higher ad relevance component, and searchers reward it with more clicks.

Improving your landing page experience means making sure the page visitors land on actually delivers what the ad promised. The page should load quickly, be mobile-friendly, and contain content that directly addresses the keyword topic. Thin pages with little content, slow load times, or pop-ups that obscure content all drag down landing page experience scores.

What a higher Quality Score means for your budget

Google calculates your cost per click using a formula that divides the ad rank of the competitor below you by your own Quality Score, then adds one penny. That means a higher Quality Score directly lowers the price you pay for each click, sometimes significantly. An advertiser with a Quality Score of eight can pay considerably less per click than a competitor with a score of four, even if they achieve a higher position.

Over a full campaign this compounding effect is substantial. If you are running a budget of several hundred pounds per month, the difference between a mediocre and a strong Quality Score can translate into dozens of additional clicks at no extra cost. Treat Quality Score improvement as a return-on-investment activity, not just a housekeeping task.