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Quality Score is built from three components: expected click-through rate, ad relevance and landing page experience. Of the three, landing page experience is the one you control most directly on your own website.
Google wants users to have a good experience after they click. If your page loads slowly, many visitors leave before they see your offer, and Google counts load speed as part of your landing page experience. Even with perfect ad copy, a slow page can hold your Quality Score back.
Speed is tied to your wallet. Google’s auction rewards a better user experience: a stronger Quality Score usually means a lower cost per click for the same position.
| Site | Quality Score | Effect on cost |
|---|---|---|
| Fast site | Tends to be higher | You often pay less per click to keep your position. |
| Slow site | Tends to be lower | You often pay more per click to stay visible, for traffic that may leave before seeing your offer. |
A large share of Google Ads clicks comes from phones, often on slower mobile connections. A page that loads instantly on your desktop can still feel slow on a phone.
Test your landing page in Google PageSpeed Insights with the mobile result, and focus on Core Web Vitals, especially Largest Contentful Paint (LCP). If mobile visitors are leaving quickly, compress images and minify code first.
Sometimes your PageSpeed score is great (green), but your bounce rate is still very high. This can be caused by sophisticated invalid traffic. Bots click ads and leave instantly, or scrape content in milliseconds, which skews your engagement data and makes it look like a speed problem.
If your technical metrics are good but your results are bad, check for bots. ClickSambo helps you tell real people leaving a slow site apart from bots draining your budget, so you solve the right problem.
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