Server Side Testing
A type of A/B test where variations are controlled on the server side rather than directly in the user's browser.
Server-side testing: A type of A/B test in which variations are generated and controlled server-side, before the content is displayed to the user. Unlike client-side testing, where changes are applied in the browser via JavaScript, server-side testing allows you to test deep changes at the business logic or backend level: recommendation algorithms, dynamic pricing, page structure, API integrations, etc.
As part of a CRO (Conversion Rate Optimization) approach, this method is particularly useful for:
- improving performance (reducing load times, eliminating flickering),
- ensuring a consistent user experience from the very first render,
- testing logic that is invisible to the user but has a strong business impact.
However, it requires more technical resources (developers, version management, QA), and is often reserved for high-stakes tests.
Popular server-side testing tools:
- Optimizely
- AB Tasty (Feature experimentation)
- Dynamic Yield
Autres termes : A/B testing
View the full glossary- A/B TestingA/B(n) testing is a method that compares two or more versions of a web page, an application, an algorithm, advertising banners, etc., to determine which performs best.A/B testing
- AA TestA type of test where two groups receive the same experience to ensure that the testing system is reliable and that observed differences are not due to chance.A/B testing
- Client-side testing (A/B test)Client-side testing modifies the content visible to the user via scripts executed in the browser.A/B testing
- DatalayerA data structure used to transmit information between a website and a tag management tool.A/B testing
- Feature FlaggingA technique for enabling or disabling features remotely without deploying new code.A/B testing
- Feature RolloutThe progressive rollout of a new feature to a subset of users before a full launch.A/B testing