_uetsid Cookie

What does the _uetsid cookie do?

_uetsid stores tracking data to identify users across multiple web pages. _uetsid cookie is used to store a unique identifier for each user and enables website owners to track the performance of their ads, specifically on the Bing search engine. This cookie is used by Bing to determine what ads should be shown that may be relevant to the end user perusing the site. _uetsid is set by Bing Ads and tracks engagement from users who have visited the website previously.

Why this cookie matters

This cookie is commonly used by bing , microsoft-ads , ascott-star-rewards , bing-microsoft for analytics purposes – such as tracking usage behaviour, optimising experience, or enabling marketing functionality.

Because it's categorised as analytics, many jurisdictions require that users give explicit consent before it can be activated. If blocked or denied by the visitor, related analytics features may not function properly.

How Cookifi helps you manage this cookie

Cookifi automatically detects cookies like _uetsid, categorises them, and gives you full control over when and how they load - based on your users' consent choices.

Whether you manage consent via Google Tag Manager, consent APIs (like the Shopify or WordPress Consent API), or prefer automatic cookie blocking or manual script control, Cookifi integrates seamlessly into your stack.

Built for technical marketers, business owners and developers, Cookifi offers flexibility without sacrificing compliance.