Homepage|landing: Sticky CTA Bar
Hypothesis
A CTA that remains visible as users scroll (sticky/floating) will capture conversions from users who are convinced mid-page but don't scroll back up.
Test Results
Key Learning
Problem: Key actions on the homepage|landing disappear as users scroll, creating a gap between intent and the ability to act.
What worked: Users who want to convert mid-page shouldn't have to hunt for the CTA. A sticky CTA captures these high-intent micro-moments. Particularly effective for mobile and long-scroll pages. Often the single highest-ROI UX change on long pages. (+32.5% lift)
Takeaway: This is a significant win worth prioritizing for implementation. CTA changes are fast to iterate — test variations of copy, color, size, and placement independently to maximize this.
How to Apply This to Your Site
This experiment demonstrated that homepage|landing: sticky cta bar can produce a +32.5% improvement in conversions. The test was run on a landing page page in the cross-industry industry.
Before you test: Consider that cta tests typically require adequate traffic to reach statistical significance. Run your test for at least 2 full business cycles to account for weekly traffic patterns.
This result reached 95% statistical confidence, meaning there is a very low probability the observed effect was due to chance. Results at this confidence level are generally considered reliable for making business decisions.
What Was Tested
Multiple tests confirm sticky CTAs work: Test #217 +70.6% engagement; Test #132 (Sjvc.edu mobile) +43.1% leads with sticky footer; Test #297 +18.4% sales with sticky Enroll button. Pattern is consistent across B2B, education, and SaaS.
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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