Server-Side A/B Testing with Optimizely: A Practical Guide

Short summary

A practical guide to server-side A/B testing with Optimizely Feature Experimentation, covering when to use it over client-side testing and how to implement it with Node.js and Python SDKs. Server-side testing moves experiment decisions into application code, enabling tests of backend logic, pricing algorithms, and full-stack omnichannel features without page flicker. The guide includes a comparison table and concrete use cases for each approach.

• •Server-side A/B testing moves experiment decisions into application code for backend logic, pricing, and omnichannel features
• •Optimizely Feature Experimentation (formerly Full Stack) provides SDKs for deterministic user bucketing across platforms
• •Use client-side for visual tweaks and server-side for algorithms, pricing, and full-stack experiments

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