A/B testing
In one sentence
Showing two versions simultaneously to two similar user groups to see which one performs better.
Change only one element at a time (headline, image, or button copy) so you know which change made the difference.
Conclusions are unreliable with small sample sizes; wait until sufficient data accumulates before drawing conclusions.
Example
Run the same ad copy with two different headlines and keep the one with the higher click-through rate after one week.
Related terms
- Conversion Rate
- The percentage of total users who complete a target action, such as the proportion of visitors who leave contact details or inquiries that close into deals.
- Landing page
- The page users land on after clicking an ad or link, purpose-built for a single conversion goal, such as booking an appointment, signing up, downloading, or purchasing.
- Marketing Funnel
- Dividing prospects from initial exposure to closed deal into stages where audience size narrows at each step, helping identify where drop-offs are highest.