Click-Through Rate (CTR) is a key performance metric that measures the percentage of users who click on a specific link, ad, or call-to-action out of the total who viewed it. Calculated as (Clicks ÷ Impressions) × 100, CTR helps evaluate the effectiveness of ads, emails, and search listings in driving engagement. A high CTR indicates strong relevance and compelling creative, while a low CTR suggests the need for better targeting or messaging.
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