🧪 A/B Testing Brief: Optimizing Donation CTA
- tarinmail8
- Jun 14
- 2 min read

Conversions
Client: HelpHarvest
Goal: Increase donations by optimizing the call-to-action (CTA) button text.
Test Duration: 21 days
Traffic Split: 50% A / 50% B
Sample Size: 24,381 total unique visitors (12,176 for A, 12,205 for B)
Conversion Metric: % of visitors who complete a donation (any amount) within 5 minutes of landing.
🎯 Hypothesis
Changing the CTA from a generic phrase (“Donate Now”) to a specific emotional prompt (“Feed a Family Today”) will improve conversion rate by increasing urgency and relatability.
🧪 Test Variants
Variant | CTA Button Text | Page Design | Other Elements |
A (Control) | Donate Now | Standard | No changes |
B (Test) | Feed a Family Today | Same | No changes |
📊 Results Summary
Metric | Variant A (Control) | Variant B (Test) | Change |
Visitors | 12,176 | 12,205 | — |
Donations | 514 | 652 | +138 |
Conversion Rate | 4.22% | 5.34% | +26.5% |
Avg. Donation Amount | $42.90 | $41.20 | −$1.70 |
Total Revenue | $22,041 | $26,857 | +$4,816 |
📈 Key Insights
“Feed a Family Today” outperformed the generic “Donate Now” CTA by 26.5% in conversion rate, suggesting that empathy-based action phrases resonate more.
Although average donation size was slightly lower in Variant B, the higher volume of donations resulted in significantly more revenue overall.
Heatmap data showed slightly more hover and scroll activity around the CTA area on Variant B, indicating more engagement.
🛠 Recommendations
Roll out “Feed a Family Today” as the new default CTA across all donation pages.
For future testing:– Try adding suggested donation tiers under the CTA.– Test variations like “Help One Child Tonight” or “Provide 3 Meals Now” for even more specific micro-impact framing.
Use the emotional CTA in email footers, SMS asks, and paid search landing pages.
✅ Final Decision
Winner: Variant BImplementation: Rolled out site-wide on June 1
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