The top-performing cta experiments on checkout pages, ranked by conversion lift. Learn what works and apply these patterns to your own tests.
Out of 9 cta tests on checkout pages, 44% produced a statistically significant improvement. Winners averaged +4.8% conversion lift.
Problem: Mobile users experience the checkout differently — smaller screens, touch targets, and limited attention require purpose-built design.
Problem: Key actions on the checkout disappear as users scroll, creating a gap between intent and the ability to act.
Context: The primary call-to-action on the checkout isn't converting at its potential — design, copy, or placement may be the bottleneck.
Context: The primary call-to-action on the checkout isn't converting at its potential — design, copy, or placement may be the bottleneck.
Sticky mobile CTAs can compress time-on-page meaningfully (~15% faster) without sacrificing engagement signals — users converted at a directionally higher rate AND moved through the page faster, suggesting reduced hesitation rather than rushed clicks. The result was shipped via 90/10 holdout monitoring rather than traditional 50/50 A/B inference — the high baseline (~85%) and limited mobile traffic made full A/B underpowered, so the team chose a holdout-validated rollout as the deliberate methodology. Bayesian P(variant > control) was ~0.90, supporting the directional ship call. Worth noting: external research flags sticky CTAs as context-dependent — they help when the primary action is buried below the fold, but can hurt on shorter pages where the original CTA is already visible.
Context: The first screen of the checkout must immediately communicate value — if it doesn't, users bounce before scrolling.
Problem: The primary call-to-action on the checkout isn't converting at its potential — design, copy, or placement may be the bottleneck.
Context: Friction during the checkout process causes users to abandon right when they're closest to converting.
Context: The primary call-to-action on the checkout isn't converting at its potential — design, copy, or placement may be the bottleneck.
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