Imagine you’re a marketing assistant at a big clothing brand. You’ve sent out your first email marketing campaign and are reviewing the click-through rate (CTR). This metric shows the percentage of recipients who clicked on links in the email. What does CTR not tell you? Select the correct answer, then submit.

click-through rate (CTR) is a ratio, not a diagnostic explanation. Google defines click-through rate (CTR) as clicks divided by impressions, so it shows how strongly the email drove action at a summary level. That makes it useful for measuring response, but not for understanding the cause behind that response. The metric shows what proportion clicked, not the motivation, hesitation, or decision process that led recipients to act or ignore the email