Experimentation Lab
Interactive implementation reference
Edge implementation

Performance Edge

Bucketing at Optimizely’s edge with a page-specific microsnippet and asynchronous tracking.

Optimizely CDN · microsnippet

Live decision runner

Simulation mode
No credential is stored in this repo. Simulation is deterministic and clearly labeled. Add a Web project ID to send real decisions and events; it stays in this browser’s local storage.

Implementation

Official docs ↗
<script src="https://cdn.optimizely.com/js/PROJECT_ID.js"></script>
// The project determines whether this endpoint returns
// a full Web snippet or a Performance Edge microsnippet.
// Inspect Network to compare transfer and execution timing.