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Home & Landing

Autoplaying Hero Video vs Static Image A/B Test Idea

A short video may explain a complex product more clearly than a still image.

  • Home & landing
  • Primary action completion rate

Control vs Variant

The asset itself is the variable.

Changed
Media
Page
Home & landing
Difference
added

Hypothesis

Motion can also distract and add loading weight. This test compares the defined video with the image; it does not isolate autoplay from the media change.

How to run this test

Primary metric

Primary action completion rate

Compare completion of the target action to see whether video changes behavior.

Other metrics

  • Video engagementMeasure starts and meaningful watch time separately; autoplay does not demonstrate interest.
  • Page load timeTrack the video's impact on page load time.
  • Page exit rateCompare exits among visitors assigned to the hero video.

What to check before and during the test

  • MediaReplace the static hero image with one predefined silent promotional video.
  • Keep constantKeep headline, CTA, hero size and surrounding content unchanged.
  • PlaybackUse the same playback behavior in both arms. If autoplay is unavailable or reduced motion is enabled, show a static alternative; provide captions and a text equivalent.
  • EngagementUse watch behavior to explain the conversion result, not to choose a winner.
  • Separate testTo compare autoplay with click-to-play, use the same video in both arms.

Setup mistakes to avoid

  1. 1Do not use autoplay with sound.
  2. 2Do not put video on the critical loading path and confound the result with slower pages.
  3. 3Do not change the video and hero headline together.
  4. 4Do not call a win from increased views if the target action does not change.
  5. 5Do not use video that cannot be paused or dismissed.