Product: Countdown Timer on Product Page
Hypothesis
If we add a countdown timer showing limited-time offer expiration, then conversion rates will improve because time-bound urgency accelerates purchase decisions
Test Results
Key Learning
Context: Coupon and promo code fields on products can distract users — they leave to hunt for codes, reducing completion rates.
What was tested: Countdown timers can accelerate purchase decisions but require genuine scarcity to maintain credibility; perceived fake urgency can damage trust and increase bounce rates With 170,153 visitors, this test has solid statistical power.
Result: No statistically significant difference was detected. This null result is still valuable — it narrows the search space and helps calibrate your minimum detectable effect for future tests.
How to Apply This to Your Site
This experiment tested product: countdown timer on product page but produced no statistically significant change. The test was run on a product page page in the cross-industry industry. Inconclusive results suggest this particular change may not be a priority — focus testing effort on higher-impact areas.
Before you test: Consider that layout tests typically require large sample sizes to detect small effects. Run your test for at least 2 full business cycles to account for weekly traffic patterns.
What Was Tested
In this experiment, 96 hours before the end of a promotion, a countdown timer was displayed on the desktop with a 80/20 split. Also excluded new users. Impact on sales was measured.
Methodology
Build On These Learnings
Save your own experiments, spot winning patterns across your test history, and stop repeating what's already been tried.
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