FewCookies

Cookie glossary · Marketing

What is the ruid cookie?

Stores Magnite (Rubicon) unique identifier used for programmatic bidding and ad targeting. It is set by Magnite (Rubicon Project) and classified as "Marketing". Requires consent.

At a glance

Provider Magnite (Rubicon Project)
Category Marketing
Consent required? Yes
Typical domain .rubiconproject.com

How FewCookies handles this cookie

FewCookies recognises ruid 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 ruid cookie?

Yes. ruid 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 ruid cookie do?

Stores Magnite (Rubicon) unique identifier used for programmatic bidding and ad targeting.

Who sets the ruid cookie?

The ruid cookie is associated with Magnite (Rubicon Project) and is classified as marketing.