ACLK_DATA cookie: what it does, who sets it, consent category

ACLK_DATA cookie

Marketing cookie set by Google, lasting 5 minutes.

Is ACLK_DATA firing on your site before anyone says yes?

Conzent holds ACLK_DATA 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.

Try it free for 14 days or self-host it for free

What the ACLK_DATA cookie does

This cookie is used to help improve advertising. This targets advertising based on what's relevant to a user, to improve reporting on campaign performance.

Who sets it

Google — privacy policy

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	`ACLK_DATA`
Category	Marketing
Lifetime	5 minutes
Set by	Google

Other cookies from the same vendor

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 2026-10-13. Descriptions come from vendor documentation, cookie policies and our own scans; write to support@getconzent.com to correct one.