FewCookies

Cookie glossary · Analytics

What is the optimizelyDomainTestCookie cookie?

Temporary cookie used by Optimizely to check whether cookies can be set on the top-level domain. It is set by Optimizely and classified as "Analytics". Requires consent.

At a glance

Provider Optimizely
Category Analytics
Consent required? Yes
Typical domain Varies (first-party)

How FewCookies handles this cookie

FewCookies recognises optimizelyDomainTestCookie from our database of 1,300+ known cookies and classifies it automatically as "Analytics". The free check tells you whether this cookie is detected on your site and whether your banner handles it correctly — an instant, surface-level check, no account needed.

Check your site for free →

Frequently asked questions

Do you need consent for the optimizelyDomainTestCookie cookie?

Yes. optimizelyDomainTestCookie is a "Analytics" cookie, so it is not strictly necessary. Under the ePrivacy Directive (2002/58/EC) and Romania's Law 506/2004, you must obtain the visitor's explicit consent before setting it.

What does the optimizelyDomainTestCookie cookie do?

Temporary cookie used by Optimizely to check whether cookies can be set on the top-level domain.

Who sets the optimizelyDomainTestCookie cookie?

The optimizelyDomainTestCookie cookie is associated with Optimizely and is classified as analytics.