What is the difference between open rate and click-through rate (CTR) in newsletter analytics?

• A. Open rate measures the percentage of recipients who open the email; CTR measures the percentage who click a link.
• B. Open rate measures the percentage who click; CTR measures opens.
• C. Open rate measures delivery rate; CTR measures read time.
• D. Open rate measures unsubscribe rate; CTR measures spam complaints.

Answer: (A)

In newsletter analytics, opens and click-through rate measure different stages of engagement. Open rate is the percentage of recipients who open the email, usually tracked when a tracking pixel loads. Click-through rate shows the percentage of recipients who click any link inside the email, reflecting how compelling the content and calls-to-action are. This distinction is why the correct description pairs open rate with opens and CTR with clicks. Other options mix up what each metric tracks—one confusing clicks for opens, another referencing delivery or read time, and another about unsubscribe or spam—so they don’t match how these metrics actually function. Keep in mind that both depend on delivery, and open rate can be influenced by image loading, while CTR depends on link placement and the strength of the content.