mc_eid Cookie

What does the mc_eid cookie do?

This cookie is used by Mailchimp to store a unique identifier associated with an email address and can be accessed by the domain mailchimp.com. It's possible that this cookie could have been set when you signed up for a newsletter or subscribed to a mailing list.

Why this cookie matters

This cookie is commonly used by mailchimp 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 mc_eid, 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.