Privacy policy: https://www.optimizely.com/privacy/
| Cookie | Category | Purpose |
|---|---|---|
optimizelyDomainTestCookie | Marketing | When Optimizely loads a URL, the snippet places the cookie to get the current domain, for the purpose of whether cross-domain syncing is possible. If successful, the cookie is immediately removed. |
optimizelyEndUserId | Marketing | Stores a visitor's unique Optimizely identifier. It's a combination of a timestamp and random number. No other information about you or your visitors is stored inside. |
optimizelyOptOut | Marketing | Stores a boolean indicating whether the visitor has opted out of participating in Optimizely-powered experimentation. |
optimizelyRedirectData | Marketing | After Optimizely has executed a redirect experiment, stores various data from the original page so that Optimizely still has access to it on the new page. |
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Last updated 2026-09-27.