Cookie database › AdRoll

__ar_v4 cookie

Marketing cookie set by AdRoll.

Is __ar_v4 firing on your site before anyone says yes?

Conzent holds __ar_v4 and every other marketing cookie until the visitor accepts, and Consent Mode v2 keeps your Google Ads and GA4 reporting accurate. Registered IAB TCF CMP, Google-certified. From €7 per site a month.

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What the __ar_v4 cookie does

This cookie is used by AdRoll and Google DoubleClick for conversion tracking, audience segmentation, and ad personalization.

Who sets it

Consent category: marketing

Marketing cookies follow visitors across sites to build advertising profiles and to measure campaigns. They always require prior consent, and a consent banner has to block them until the visitor agrees.

Name__ar_v4
CategoryMarketing
Set byAdRoll

Is this cookie on your site?

Conzent's scanner lists every cookie your site sets, classifies each one the way this page does, and shows which are set before the visitor has consented. Try Conzent free for 14 days, or look up another cookie.

From the Conzent cookie database, last updated 2026-10-17. Descriptions come from vendor documentation, cookie policies and our own scans; write to support@getconzent.com to correct one.