At a glance
| Provider | AdRoll |
|---|---|
| Category | Marketing |
| Consent required? | Yes |
| Typical domain | .adroll.com |
Do you need consent for __ar_v4?
Yes. __ar_v4 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 __ar_v4 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 __ar_v4 cookie?
Yes. __ar_v4 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 __ar_v4 cookie do?
Stores AdRoll ad-segment identifiers used to cap frequency and measure conversions.
Who sets the __ar_v4 cookie?
The __ar_v4 cookie is associated with AdRoll and is classified as marketing.