Quality Score is the hidden multiplier that determines how much you pay per click and where your ad appears. Ignore it and you're paying a premium for every impression.
Quality Score (1–10) is Google's rating of how relevant your keyword, ad, and landing page are to the user's search. A score of 7 vs. 4 on the same keyword can mean paying 30–50% less per click while ranking higher than competitors with bigger budgets.
Here are the 10 factors that move Quality Score — what each one means, why Google cares about it, and exactly how to improve it without rebuilding your entire account from scratch.
1–3
Below Average
Quality Score Range
4–6
Average
Quality Score Range
7–10
Above Average
Quality Score Range
Why it matters
Expected CTR is Google's prediction of how likely your ad is to be clicked when shown for a given keyword. It's the most heavily weighted component of Quality Score and directly affects your Ad Rank and the CPC you pay.
How to improve it
Write headlines that tightly match what the user searched. Use numbers, brackets, and action verbs. Test emotional triggers alongside rational benefits. Pause keywords with chronically low CTR and replace them with tighter, more specific terms.
A low expected CTR signals to Google that your ad isn't relevant to the query — even if you think it is. The algorithm has seen millions of similar searches and knows whether users click ads like yours. If your CTR is below 2% on core keywords, treat it as a structural problem, not a copy problem.
Lower your CPC without cutting traffic →Why it matters
Ad relevance measures how closely your ad copy matches the intent behind the keyword being triggered. A 'Below Average' rating here means Google thinks your ad is too generic or misaligned with what users actually want.
How to improve it
Include the exact keyword (or close variant) in your headline 1. Mirror the language your audience uses — not industry jargon. If one ad group covers too many intent types, split it into tighter groups with dedicated copy for each.
The fastest way to fix ad relevance is to ensure your headline answers the implicit question behind the search. 'Emergency Plumber Houston — Available 24/7' answers 'emergency plumber near me' far better than 'Professional Plumbing Services in Houston'.
Why it matters
Google evaluates whether your landing page delivers on what the ad promises — in terms of content, load speed, mobile usability, and ease of navigation. Poor landing page experience drags down Quality Score even if your ad copy is excellent.
How to improve it
Match the landing page headline to your ad headline. Remove friction — no forced sign-ups before showing value. Ensure the page loads in under 3 seconds on mobile. Include the keyword prominently in the page copy and title tag.
Google's crawlers assess landing pages independently of your ad account. A high-converting page with slow load time or thin content still gets penalized. Treat your landing page as part of the ad — because Google does.
Optimize your landing page for paid traffic →Why it matters
When one ad group contains 50 loosely related keywords, your single ad can't possibly be relevant to all of them. Bloated ad groups are one of the most common causes of low Quality Scores across entire accounts.
How to improve it
Use single keyword ad groups (SKAGs) or tightly themed clusters of 3–5 keywords per ad group. Each group should have a dedicated ad set written specifically for those terms. This lets you maximize relevance across CTR, ad copy, and landing page simultaneously.
A tight ad group means every element — keyword, ad, landing page — is aligned. Google sees this alignment as a signal of quality. As a bonus, tighter groups make A/B testing far more actionable because you're isolating real variables.
Why it matters
Every irrelevant click lowers your CTR — which lowers your expected CTR score — which lowers your Quality Score. Negative keywords prevent your ads from showing on searches that will never convert, protecting your CTR and your budget simultaneously.
How to improve it
Pull your Search Terms report weekly. Add anything non-commercial (informational queries, competitor brand names you don't want, irrelevant industries) as negatives at the campaign or ad group level. Build a shared negative keyword list for account-wide protection.
Negative keywords are free money. Every irrelevant impression that doesn't click costs you nothing in spend but costs you in Quality Score. Cleaning them out consistently is the most underused lever in Google Ads optimization.
Fix what's stopping your Google Ads from converting →Why it matters
Using broad match for all keywords without strong negatives is a Quality Score nightmare. You get impressions on tangentially related searches, CTR drops, relevance drops, and Quality Score follows. Match type strategy directly controls the quality of your impression pool.
How to improve it
Start core campaigns on exact and phrase match to establish Quality Score baselines. Use broad match only on campaigns with strong conversion history and robust negative keyword lists. Review search terms weekly regardless of match type.
Broad match in 2026 is more aggressive than ever — Google will match to queries that share 'similar meaning' by its interpretation. That's powerful when you have data, dangerous when you don't. Build Quality Score on tight match types first, then expand.
Why it matters
Weak copy produces weak CTR, which suppresses expected CTR scores account-wide over time. Strong copy that matches user intent, includes proof points, and uses all available extensions is the single highest-leverage Quality Score lever you control directly.
How to improve it
Pin your most keyword-relevant headline in position 1. Use the description lines for social proof, urgency, or specific offers. Fill every headline and description slot in Responsive Search Ads. Add sitelinks, callouts, and structured snippets — extensions improve CTR and signal quality.
Google's RSA system learns which headline combinations perform best over time. But it can only optimize what you give it. More high-quality, varied headline options = better optimization signal = higher CTR = higher Quality Score.
Write CTAs that drive higher ad CTR →Why it matters
More than 60% of Google searches happen on mobile. If your landing page is slow, hard to read, or requires pinching and zooming, Google's mobile usability assessment tanks your landing page experience score — regardless of how good your desktop experience is.
How to improve it
Run your URLs through Google's Mobile-Friendly Test. Ensure tap targets are large enough, text is readable without zooming, and CTAs are thumb-accessible. Consider mobile-specific ad variations with shorter headlines that render cleanly on small screens.
Mobile optimization isn't optional — it's scored. A page that loads in 2.1 seconds on desktop and 6.8 seconds on mobile is a mobile-bad page in Google's evaluation. Core Web Vitals on mobile are now a direct input into landing page experience ratings.
Why it matters
Page speed is assessed as part of landing page experience and affects both Quality Score and conversion rate simultaneously. A 1-second delay in mobile load time reduces conversions by an average of 20%. Slow pages cost you twice — in Quality Score and in revenue.
How to improve it
Run PageSpeed Insights on every landing page URL in your account. Prioritize: compress images (use WebP), eliminate render-blocking JavaScript, enable browser caching, and use a CDN. Aim for a Largest Contentful Paint (LCP) under 2.5 seconds.
Page speed improvements have compounding benefits. Faster pages → better Quality Score → lower CPC → more budget efficiency → more conversions. It's the one technical fix that directly improves both your Google Ads performance and your bottom line.
See fast-loading Google Ads examples that convert →Why it matters
Without structured testing, you can't separate what's improving Quality Score from what's just noise. Systematic A/B testing isolates the variables that drive CTR and relevance gains, giving you a repeatable process instead of a one-time fix.
How to improve it
Test one variable at a time: headline 1 vs. headline 1 variant, with everything else held constant. Run tests until statistical significance is reached (minimum 100 clicks per variant). Document winners and apply learnings across similar ad groups.
Most Google Ads accounts run no structured tests. They change multiple things simultaneously and have no idea what moved the needle. A disciplined testing cadence — even one test per month — compounds into measurably better Quality Scores over a quarter.
Run A/B tests that actually improve your Quality Score →Every component of Quality Score — expected CTR, ad relevance, landing page experience — is Google asking the same underlying question: does this ad genuinely serve what the user is looking for?
Accounts that chase Quality Score through tricks (keyword stuffing, misleading headlines, bait landing pages) see short-term gains and long-term penalties. Accounts that optimize for genuine relevance see compounding gains — lower CPCs, better positions, and higher conversion rates from better-qualified traffic.
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AdCampin audits your Google Ads account for Quality Score issues, flags what's costing you extra, and gives you a prioritized fix list — no agency fees required.
Audit My Quality Score — Free →A Quality Score of 7–10 is generally considered strong and indicates good ad relevance and performance. Scores of 8–10 on your most important keywords can reduce CPC by 30–50% compared to a score of 4–5.
Yes, higher Quality Scores often reduce CPC because Google rewards relevant ads with lower costs. Your Ad Rank is calculated as Max CPC × Quality Score, so a higher score directly reduces what you need to bid to achieve the same position.
You can often see improvements within days to weeks after optimizing ads, keywords, and landing pages. CTR improvements reflect quickly (within days). Landing page experience and historical CTR changes take a few weeks to fully register in the score.
Quality Score is made up of Expected CTR (most heavily weighted), Ad Relevance, and Landing Page Experience. Each component is rated Above Average, Average, or Below Average. Any 'Below Average' rating is a priority fix.
Yes. In your Google Ads account, go to Keywords → Columns → Modify Columns → Quality Score. You can add Quality Score, Expected CTR, Ad Relevance, and Landing Page Experience as columns to your keyword view.