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ms_uid cookie

Marketing cookie set by Microsoft Advertising.

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What the ms_uid cookie does

The MUID cookie is a Microsoft user identifier used for ad personalization, analytics, and tracking across Microsoft properties, including Bing Ads on third-party sites.

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.

Namems_uid
CategoryMarketing
Set byMicrosoft Advertising

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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 2026-11-12. Descriptions come from vendor documentation, cookie policies and our own scans; write to support@getconzent.com to correct one.