// glossary entry

A/B Testing

What is A/B testing?

A/B testing compares two versions of a page, an element, or a campaign in parallel across randomly assigned groups of visitors. A predetermined metric, such as the conversion rate, determines which version wins. At Waterproof Web Wizard, we use A/B testing as an objective check on gut decisions, so you don’t keep pouring your budget into untested assumptions. This requires a clear hypothesis, a realistic sample size, and a fixed evaluation period. If there isn’t enough traffic for this, we’ll let you know, before the test begins.

// synonyms

  • A/B Test
  • A/B Test
  • Split Test
  • A/B Testing
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