Paid Ads Strategy
Quality Score Is Costing You: How to Diagnose and Fix It
Published July 27, 2026
Quality Score is Google's 1 to 10 read of how relevant your ad experience is for a given keyword, and higher scores generally mean paying less for the same click. It isn't a vanity metric, it's a diagnosis. Here's what the score actually reflects, how to find the keywords worth fixing, and which lever moves each component.
What does Quality Score actually tell you?
Quality Score is a per keyword grade of the entire path behind a click: the search someone typed, the ad they saw, and the page they landed on. It's a diagnosis, not a trophy. A low score means you're outbidding a problem instead of fixing it, and paying a relevance premium on every click.
The auction rewards relevance because Google wants results people click and stay on. That's why a more relevant advertiser can win the same position, or the same click, for less than a competitor with a bigger bid and a worse match. The score is the visible edge of that math.
Which also means the goal is not a column full of tens. A keyword sitting at seven that converts profitably isn't a problem to solve, it's a keyword doing its job. Chasing the number for its own sake is how accounts get rebuilt for no gain.
What are the three components behind the number?
Google grades three things and shows each as below average, average, or above average: expected clickthrough rate, ad relevance, and landing page experience. The composite score tells you something is off. The three component grades tell you what, which is the only part you can actually act on.
- Expected clickthrough rate: how likely Google predicts a searcher is to click your ad for this keyword, based on its history rather than on your opinion of the copy.
- Ad relevance: how closely the ad's message matches what was actually searched, judged against the keyword itself and not against your service list.
- Landing page experience: whether the page delivers what the ad promised, quickly and clearly. This is the pairing the conversion-first setup is built around.
Read them as a map, not a scorecard. Two average grades and one below average is a specific instruction about where to spend an afternoon. A 1 to 10 number sitting by itself is just a mood.
Which keywords are actually worth fixing?
Start where the money is. Sort your keywords by spend, then look at the scores inside the top rows. A five on a keyword taking a real share of the budget deserves attention this week. A five on a keyword that spent almost nothing last quarter deserves none at all.
- Pull a keyword report with cost, conversions, Quality Score, and the three component columns turned on. Those component columns are not shown by default.
- Sort by cost, highest first, and mark every keyword near the top that scores below your account's usual range.
- For each keyword you marked, read which component is dragging. That grade names the fix, so you're not guessing.
- Skip anything with thin data. New keywords start on estimates and settle once real traffic accumulates, so a fresh score is provisional.
- Leave the low spend stragglers alone, and revisit the list monthly rather than daily.
The temptation is to treat every number below ten as a task. Resist it. A weak score on a keyword spending nothing costs nothing, and an hour spent there is an hour not spent on the keyword quietly eating a third of the budget.
How do you match the fix to the component?
Each below average grade has its own lever, and reaching for the wrong one wastes the effort. Ad relevance is fixed by structure, expected clickthrough rate by language, and landing page experience by the page keeping the ad's promise. Diagnose first, then apply the matching fix.
| Component dragging | What it usually means | The lever |
|---|---|---|
| Ad relevance | One ad group is covering several different searches | Split the group until one ad can genuinely mirror one search theme |
| Expected clickthrough rate | The ad talks about you instead of about the search | Put the searcher's own words in the headline, not your slogan |
| Landing page experience | The ad promised something the page doesn't answer | Send the click to a page about that exact question, not the homepage |
Ad relevance drag is almost always a structure problem wearing a copy problem's clothes. If one ad group holds both "emergency water heater repair" and "water heater installation cost", no single ad can speak to both honestly. Split it. Tight ad groups exist so the search, the ad, and the page can all say the same thing.
Expected clickthrough rate responds to language. The headline that wins is usually the one that repeats the search back to the person who typed it. Taglines, company names, and clever wordplay in the first headline are how advertisers lose this grade without ever noticing they did.
Landing page experience is the slowest to fix and the most valuable. The page has to answer the searched question near the top, load fast on a phone, and make contact effortless. A slow page or a buried phone number reads as poor experience to Google for the same reason it reads that way to a customer: nobody got what they came for.
How long until the score actually moves?
Longer than you'd like. Quality Score is backward looking, so it re-rates only as new impressions and clicks accumulate against the changed ad or page. On a low volume local keyword, that can take weeks. The work is done before the number agrees with you.
Which is why we judge a fix by cost per lead rather than by refreshing the score column. If the change was right, clickthrough rate and cost per click usually move before the composite grade does. Google Ads management is this loop run on a monthly rhythm, not in a panic.
If you'd like a second set of eyes before you start splitting ad groups, book a demo and we'll read the account first: which keywords carry the spend, what the component grades say, and what we'd fix in the first two weeks.
Questions people ask
Usually, but not always. Higher relevance generally lets you win the same click for less, which is why the score is worth watching at all. Competition, bid strategy, and seasonal demand also move cost per click, so a better score can still land in a more expensive month. Judge the account on cost per lead.
No. It's a readout of things you optimize: ad group structure, message match, and landing page experience. You can't edit the number, only the inputs behind it. That's why the three component grades are more useful than the composite score.
Only if they're also losing money. Spend and conversions decide whether a keyword stays, not the grade. A low score on a keyword producing leads at an acceptable cost is a savings opportunity, not a reason to pause. Pause the ones that spend and don't convert.
Monthly is enough for most accounts. The score lags the traffic that re-rates it, so checking daily shows noise rather than progress. Look at it when you review spend, alongside cost per lead, and act only on high-spend keywords whose component grades point somewhere specific.