Quality Score Audit: What Actually Matters and What to Ignore

Few numbers in Google Ads are chased as hard, or understood as poorly, as Quality Score.

It arrives with an intuitive appeal. A single figure from 1 to 10, sitting next to each keyword, apparently grading how good your advertising is. Higher must be better. So people set out to raise it, treat a low score as a failure, and pour effort into moving a number that, taken on its own, does not directly do very much.

The truth is more useful and more nuanced. Quality Score is not a target to be maximised. It is a diagnostic, a simplified readout of three underlying signals that tell you where an account has relevance and experience problems worth fixing. Read it that way and it becomes genuinely useful. Chase the number itself and you can waste a great deal of effort optimising a proxy.

Here is how to audit Quality Score properly: what its parts actually mean, when a low score matters, and when the honest answer is to ignore it.

What Quality Score Actually Is

Quality Score is a 1 to 10 keyword-level estimate, shown in your account, of the quality of your ads and landing pages relative to other advertisers for that keyword. It is built from three components, each rated as below average, average, or above average.

Those three components are expected click-through rate, ad relevance, and landing page experience. They are the substance. The 1 to 10 number is a rolled-up summary of them.

The single most important thing to understand is this: the visible Quality Score is a reporting and diagnostic tool. It is a simplified, historical indicator. The actual quality assessment that influences your ad rank and your costs is calculated fresh at auction time, using far more signals than the three you can see, and it is not the same thing as the tidy number in your columns. So the number is a guide to where to look, not a live scoreboard of what you are paying.

Why It Matters, Roughly

Quality, in the broad sense the three components point to, genuinely affects your account. A more relevant ad with a better landing page can achieve a higher position for a lower cost, because the auction rewards relevance. That relationship is real, and it is why the components are worth auditing.

But be careful with the causation. Improving the components can improve your position and costs. Chasing the displayed number as an end in itself does not, because the number is a lagging summary, not the lever. You improve outcomes by making your ads more relevant and your pages better, and the score follows. You do not improve outcomes by trying to move the score directly.

Hold that distinction and the rest of the audit falls into place.

Component One: Expected Click-Through Rate

Expected CTR is Google's prediction of how likely your ad is to be clicked when it shows for that keyword, stripped of the effects of position and format so it reflects the ad itself.

A below-average rating here is telling you something specific: for this keyword, your ad is predicted to be less compelling than competitors' ads. That is a relevance and messaging problem.

Audit for:

Whether the ad copy actually speaks to the keyword's intent Whether the keyword belongs in this ad group at all, or is orphaned among unrelated terms Whether the assets are specific and compelling rather than generic Whether the offer or hook matches what someone searching that term wants

A low expected CTR usually points to a mismatch between the keyword and the ad. The fix is rarely mysterious: make the ad genuinely relevant to the search, or move the keyword somewhere its ad can be.

Component Two: Ad Relevance

Ad relevance rates how closely your ad matches the intent behind the keyword. A below-average rating means Google sees a gap between what the person searched and what your ad is about.

This is closely related to expected CTR but distinct: expected CTR predicts behaviour, ad relevance judges thematic match.

Audit for:

Whether ad groups are tightly enough themed that the ads can be relevant to the keywords Whether a single generic ad is stretched across keywords with different intents Whether the keyword's core terms and concepts appear naturally in the ad Whether over-broad ad groups are diluting relevance across too many themes

Poor ad relevance is very often a structure problem in disguise. When an ad group contains keywords about several different things, no single ad can be relevant to all of them, and relevance suffers across the board. The fix is usually organisational: group keywords so that a genuinely relevant ad is possible.

Component Three: Landing Page Experience

Landing page experience rates how useful and relevant your landing page is to someone who clicks the ad. A below-average rating says the page is letting the click down.

This is the component people most often forget is even part of Quality Score, and it is frequently the most fixable.

Audit for:

Whether the page delivers what the ad promised, or dumps traffic on a generic homepage Whether the page is relevant to the specific keyword and ad Mobile load speed, which is a real factor in the experience Whether the page is easy to navigate, transparent and trustworthy Whether high-spend keywords point to pages actually built for them

Landing page experience is where a Quality Score problem becomes a conversion problem too, because the same weaknesses that hurt the rating, a slow, vague, irrelevant page, also cost you sales. Fixing it improves both, which makes it usually the highest-value component to address.

Reading the Components Together

The real diagnostic power comes from reading the three components as a pattern, not chasing the single number.

Low expected CTR, everything else fine: an ad copy or keyword-placement problem. The ad is not compelling for that search.

Low ad relevance: usually a structure problem. Keywords and ads are mismatched, often because the ad group is too broad.

Low landing page experience: a post-click problem. The page is slow, irrelevant, or breaks the ad's promise. Often the most valuable to fix, because it hurts conversions too.

All three low: the keyword may simply not belong in the account, or the whole ad group needs rebuilding around genuine intent.

This is why the components matter more than the score. A "4" tells you something is wrong. The components tell you what, and therefore what to do.

When to Ignore Quality Score Entirely

Here is the part that goes against the instinct to optimise everything: sometimes the right response to a low Quality Score is to ignore it.

On brand keywords, Quality Score can occasionally look odd or low for reasons that do not reflect a real problem, and brand terms perform so well regardless that the score is beside the point. Do not burn hours optimising the Quality Score of a brand term that is already converting brilliantly.

On very low-volume keywords, the score is based on thin data and is unreliable. Optimising it is effort spent on noise.

When the number and the results disagree, trust the results. A keyword with a mediocre Quality Score that drives profitable conversions is doing its job. The score is a proxy; conversions and profit are the real thing. Never sacrifice a performing keyword to appease a diagnostic number.

When chasing the score would compromise the commercial goal, stop. Stuffing keywords into ad copy to lift relevance, at the cost of a compelling message, can raise the number and lower the performance. That is optimising the proxy against the goal.

The discipline is to use Quality Score to find problems, then judge the fix by commercial results, not by whether the number moved.

Common Quality Score Mistakes

Treating it as a target to maximise It is a diagnostic. Improve the underlying components and outcomes; the score follows. Chasing the number directly wastes effort.

Confusing the visible score with auction-time quality The number in your columns is a simplified, historical indicator. The real assessment happens fresh at auction with far more signals.

Ignoring landing page experience The forgotten component, and often the most valuable, because fixing it helps conversions as well as the score.

Keyword-stuffing ads to lift relevance It can raise the number and hurt the message. The proxy improves; the performance does not.

Optimising brand or low-volume keywords' scores Effort spent on terms where the score is either irrelevant or unreliable.

Sacrificing a performing keyword to a low score If it converts profitably, the number is beside the point. Trust results over the proxy.

How AI Can Help

Reading Quality Score across a large account means looking at three components on every keyword and spotting the patterns, which is slow by hand and easy to do superficially.

AI can process:

Component patterns across every keyword at once Where low ad relevance signals a structural mismatch Which low scores sit on high-spend keywords worth fixing Where landing page experience is dragging both score and conversions Which low scores are safe to ignore because results are strong

GoogleAdsAudits.com reviews account structure, tracking, bidding, creative, feed and channel mix, then produces a prioritised action plan positioning each recommendation by impact, effort and confidence.

The decision about which fixes are worth the effort still rests on the commercial results, which come from the business.

Final Thoughts

Quality Score is not a grade to maximise. It is a diagnostic that points you toward relevance and experience problems worth fixing, through its three components: expected click-through rate, ad relevance and landing page experience.

Audit those components rather than the headline number. A low expected CTR is a messaging problem. Low ad relevance is usually a structure problem. Low landing page experience is a post-click problem that costs you conversions as well as score. Read them together and they tell you exactly where to act.

And know when to walk away from the number. On brand terms, low-volume keywords, and anywhere the score disagrees with the results, trust the commercial outcome over the proxy. The point of Quality Score was never the score. It was what the score reveals.

Build a personalised Google Ads action plan that identifies wasted spend, scalable opportunities and the fixes your team should prioritise next.

Frequently Asked Questions

What is a good Quality Score in Google Ads?

Higher is generally better, but there is no universal target, and chasing the number itself is a mistake. What matters is the three components beneath it, expected CTR, ad relevance and landing page experience, and whether the keyword is delivering profitable results. A mediocre score on a converting keyword is fine.

Does Quality Score directly affect what I pay?

Indirectly. Quality, in the broad sense the components measure, influences ad rank and cost at auction, so more relevant ads and better pages can win better positions for less. But the visible 1 to 10 number is a diagnostic summary, not the live figure used in the auction, which uses many more signals calculated in real time.

What are the three components of Quality Score?

Expected click-through rate (how likely your ad is to be clicked), ad relevance (how well it matches the keyword's intent), and landing page experience (how useful and relevant the page is). Each is rated below average, average or above average, and they are more useful than the headline number.

How do I improve a low Quality Score?

Diagnose which component is weak. Low expected CTR usually means an ad copy or keyword-placement issue; low ad relevance usually means a structure problem; low landing page experience means fixing the page. Improve the underlying issue and the score follows.

Should I always try to raise Quality Score?

No. On brand keywords, very low-volume keywords, and anywhere the score disagrees with strong results, it is often best ignored. Never sacrifice a profitable keyword to improve a diagnostic number.

Why is the Quality Score I see different from what affects my ads?

The visible score is a simplified, historical reporting tool. The actual quality assessment that influences ad rank and cost is calculated fresh at auction time using far more signals. Use the visible score to find problems, not as a live scoreboard.

Is landing page experience really part of Quality Score?

Yes, and it is the component people most often forget. It is frequently the most valuable to fix, because the same weaknesses that hurt the rating, a slow, vague or irrelevant page, also cost you conversions.

AUTHOR BIO

Jack Felstead is an award-winning Paid Media, AI and Digital Growth Consultant with 17 years of experience helping businesses improve customer acquisition, advertising efficiency, revenue and profit.