FewCookies

Cookie glossary · Marketing

What is the guest_id_marketing cookie?

Twitter cookie for ad targeting of unauthenticated visitors. It is set by Twitter and classified as "Marketing". Requires consent.

At a glance

Provider Twitter
Category Marketing
Consent required? Yes
Typical domain .twitter.com

How FewCookies handles this cookie

FewCookies recognises guest_id_marketing 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.

Check your site for free →

Frequently asked questions

Do you need consent for the guest_id_marketing cookie?

Yes. guest_id_marketing 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 guest_id_marketing cookie do?

Twitter cookie for ad targeting of unauthenticated visitors.

Who sets the guest_id_marketing cookie?

The guest_id_marketing cookie is associated with Twitter and is classified as marketing.