FewCookies

Cookie glossary · Analytics

What is the __utmz cookie?

Universal Analytics cookie that stores the traffic source and campaign. It is set by Google Analytics and classified as "Analytics". Requires consent.

At a glance

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

How FewCookies handles this cookie

FewCookies recognises __utmz 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.

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Frequently asked questions

Do you need consent for the __utmz cookie?

Yes. __utmz 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 __utmz cookie do?

Universal Analytics cookie that stores the traffic source and campaign.

Who sets the __utmz cookie?

The __utmz cookie is associated with Google Analytics and is classified as analytics.