At a glance
| Provider | Xandr (AppNexus) |
|---|---|
| Category | Marketing |
| Consent required? | Yes |
| Typical domain | .adnxs.com |
Do you need consent for sess?
Yes. sess 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.
This is general guidance, not legal advice — always verify with a lawyer.
How FewCookies handles this cookie
FewCookies recognises sess 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.
Frequently asked questions
Do you need consent for the sess cookie?
Yes. sess 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 sess cookie do?
Xandr cookie used to test whether the user's browser accepts cookies for advertising.
Who sets the sess cookie?
The sess cookie is associated with Xandr (AppNexus) and is classified as marketing.