__ut Cookie

What does the __ut cookie do?

This service is mostly used for showing advertisements. _ut - This cookie is used to uniquely identify the same user on the different domains. The User Token Cookie is stored on your website and contains encrypted data for user accounts.

Why this cookie matters

This cookie is commonly used by piano , google-ads-optimization , marfeel for preferences purposes – such as tracking usage behaviour, optimising experience, or enabling marketing functionality.

Because it's categorised as preferences, many jurisdictions require that users give explicit consent before it can be activated. If blocked or denied by the visitor, preference-related features (like remembering language or layout choices) may not function properly.

How Cookifi helps you manage this cookie

Cookifi automatically detects cookies like __ut, 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.