Microsoft Ads UET (Bing)

Marketing & advertising

Universal Event Tracking tag for Microsoft Advertising (Bing).

How to block it until consent

Marketing — requires consent. bat.js from bat.bing.com; sets _uetsid, _uetvid, MUID third-party cookies. Supports Consent Mode via uetq.push('consent', 'update', {...}).

Detection signals

Host domains

bing.com
bat.bing.com

Cookies set

_uetsid
_uetvid
_uetmsclkid
MUID

Request patterns

/bat.js
/action/
/uet

Categorisation follows common EU/DPC guidance. Your specific deployment may change the category (e.g. Stripe on a checkout page vs. a marketing page).