CTR glossary definition

CTR, or click-through rate, measures the proportion of people who click on a link after seeing it. You calculate it using two simple numbers, the number of clicks and the number of impressions.

If your ad, email, or listing appears 10,000 times and 500 people click on it, your CTR is 5%. The formula remains the same whether you track it in Google Ads, on an SEO page, or in an email campaign. CTR = (clicks ÷ impressions) × 100.

A high CTR does not guarantee a final result, but it often indicates that your message captures attention and that your audience understands what they will get by clicking. You can use it to test a headline, a value proposition, a visual, or a call to action. When you change only one element, you can more easily identify what drives clicks.

In SEO, CTR depends heavily on the title and meta description displayed in search results. Google shows a snippet, so you focus on the clarity of your offer and the search intent. In advertising, CTR also reacts to targeting, positioning, and the consistency between the ad and the landing page.

To interpret your CTR, track it over time and compare it with your past data. Also look at variations by device, by query, or by placement. You want actionable data, not a vague average. In short, CTR is used to measure the impact of what you show before the click.

If you want to improve your performance, start by analyzing your pages or campaigns that receive impressions, then test adjustments on visible elements. CTR gives you a concrete starting point.

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