Cookie database

custom_user_id cookie

Analytics cookie.

Is custom_user_id firing on your site before anyone says yes?

Conzent holds custom_user_id and every other analytics 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 custom_user_id cookie does

This cookie likely identifies individual users to track their behavior and gather statistical data on website usage.

Who sets it

The service behind this cookie is not named in our records yet.

Consent category: analytics

Analytics cookies measure how a site is used, in aggregate: pages seen, sessions, where visitors came from. Under the GDPR they need consent before they are set, and Google Consent Mode can model what is lost when visitors decline.

Namecustom_user_id
CategoryAnalytics

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 2026-10-16. Descriptions come from vendor documentation, cookie policies and our own scans; write to support@getconzent.com to correct one.