Resources
CRO and A/B testing glossary
The terms you will run into when improving your site's conversion, explained with examples. Below, tool comparisons and free calculators.
Looking for concrete ideas? See the 30 A/B test ideasCRO glossary
- CRO agentAn AI that proposes, builds and measures changes on your site
- AI A/B testingAI proposes, builds and explains; statistics decides
- CROOptimizing conversion with hypotheses and A/B tests
- A/B testComparing two versions of a page with real data
- Conversion rateWhat share of your visitors buy or get in touch
- CRO hypothesisWhat to change, for whom, what to measure and why
- ICE scoreImpact, Confidence and Ease to rank hypotheses
- Sample sizeHow many visitors each version of a test needs
- Minimum detectable effectThe smallest lift your test can see
- Statistical significanceWhen a difference is real and not chance
- Bayesian A/B testingProbability to win instead of a p-value
- Sample ratio mismatchWhen the visitor split doesn't add up
- Web personalizationA version of your site for each kind of visitor
- Personalize by campaignMake the website say what the ad said
Comparisons
- Bixlow vs KameleoonThe differences, with facts, and when to pick each
- Kameleoon alternativeOptions in Spanish, with public prices
- A/B testing tools 2026Seven options compared with facts from their own sites
- Google Optimize alternativeWhat to use now that Optimize is gone
- VWO and AB Tasty alternativeWhat changes with Wingify, and your options