FewCookies

Cookie glossary · Marketing

What is the KRTBCOOKIE_* cookie?

PubMatic sync cookie that maps the user ID to a DSP partner's ID for real-time bidding. It is set by PubMatic and classified as "Marketing". Requires consent.

At a glance

Provider PubMatic
Category Marketing
Consent required? Yes
Typical domain .pubmatic.com

How FewCookies handles this cookie

FewCookies recognises KRTBCOOKIE_* 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 KRTBCOOKIE_* cookie?

Yes. KRTBCOOKIE_* 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 KRTBCOOKIE_* cookie do?

PubMatic sync cookie that maps the user ID to a DSP partner's ID for real-time bidding.

Who sets the KRTBCOOKIE_* cookie?

The KRTBCOOKIE_* cookie is associated with PubMatic and is classified as marketing.