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Click-through rate (CTR) is the percentage of email recipients who clicked on one or more links in an email. It's calculated by dividing unique clicks by delivered emails. CTR is one of the most important metrics for measuring email engagement and content effectiveness.
CTR measures how effectively your email content drives action. Unlike open rates (which can be inflated by Apple Mail Privacy Protection), clicks represent genuine engagement. A strong CTR indicates that your content resonates with readers and your calls-to-action are compelling. Low CTR suggests a disconnect between your subject line promise and email content.
Click-through rate is calculated using the formula: (Unique Clicks ÷ Emails Delivered) × 100. Some marketers use Click-to-Open Rate (CTOR), which divides clicks by opens instead of deliveries, giving a better picture of content effectiveness among those who actually opened the email. The formula for CTOR is: (Unique Clicks ÷ Unique Opens) × 100.
Average email CTR across industries is 2-5%. B2B emails typically see 3-5%, while B2C averages around 2-3%. However, highly targeted and personalized campaigns can achieve 10%+ CTR. Focus on improving your own benchmarks over time.
CTR (Click-Through Rate) divides clicks by total delivered emails, measuring overall campaign effectiveness. CTOR (Click-to-Open Rate) divides clicks by opens, measuring how well your content converts readers who actually opened the email. CTOR is generally higher and better reflects content quality.
This disconnect usually means your subject line creates expectations your content doesn't fulfill, your CTA isn't compelling enough, or your email design makes it hard to find or click links. Review your content-subject line alignment and test different CTA placements and copy.
Focus on one primary CTA. While you can include secondary links (social, footer, etc.), having too many competing CTAs dilutes clicks. For promotional emails, stick to 1-3 prominent links. For newsletters, more links are acceptable but prioritize the most important ones.
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