FewCookies

Cookie glossary · Marketing

What is the d cookie?

Quantcast cookie storing encoded browser and user data used for audience measurement and segmentation. It is set by Quantcast and classified as "Marketing". Requires consent.

At a glance

Provider Quantcast
Category Marketing
Consent required? Yes
Typical domain .quantserve.com

How FewCookies handles this cookie

FewCookies recognises d from our database of 1,300+ known cookies and classifies it automatically as "Marketing". 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 d cookie?

Yes. d is a "Marketing" 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 d cookie do?

Quantcast cookie storing encoded browser and user data used for audience measurement and segmentation.

Who sets the d cookie?

The d cookie is associated with Quantcast and is classified as marketing.