Ali Demirbaş - Lab
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Home & Landing

Showing the Next Section Above the Fold A/B Test

When the first screen ends exactly at a section boundary, visitors may think the page is over.

  • Home & landing
  • Primary action completion rate

Control vs Variant

How hard the same message is pushed is the variable.

Changed
Emphasis
Page
Home & landing
Difference
changed

Hypothesis

Showing the start of the next section may signal that more content follows. Do not treat extra scrolling as a win; track completion of the target action.

How to run this test

Primary metric

Primary action completion rate

Check whether increased scrolling carries through to completion of the target action.

Other metrics

  • Lower-section visibilityMeasure whether the predefined section enters the viewport; do not use the same scroll percentage across different layouts.
  • Lower-section interaction rateTrack interaction with links or controls in that section.
  • Time to primary actionCompare time from page load to completion of the target action.
  • Page exit rateCompare exits among visitors assigned to the page.

What to check before and during the test

  • FoldSet the first section height so a predefined part of the next section is visible.
  • Keep constantKeep content, section order, typography and CTA unchanged.
  • OutcomeRead lower-section interaction alongside completed actions.
  • ViewportCheck the fold on devices included in the test.
  • AccessKeep section boundaries clear and scrolling under visitor control.

Setup mistakes to avoid

  1. 1Do not change section height and content order together.
  2. 2Do not call a win from more scrolling without checking the target action.
  3. 3Do not add automatic scrolling to force visitors down the page.
  4. 4Do not generalize from one screen height to all devices.
  5. 5Keep the sections readable when changing their boundaries.