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Which cookies are used by MailerLite forms

Note: If you're a Legacy (Classic) user, please log in to your account to access the dedicated Legacy (Classic) Help Center. 

A cookie (otherwise known as an HTTP cookie) is a small piece of data stored on your computer by your web browser while you’re visiting a website. The purpose of a cookie is to help the website keep track of your visits and activity.

MailerLite forms that contain surveys (such as promotions, landing pages, and websites) have the ml_guid localStorage cookie. We utilize this cookie to identify users who submit MailerLite surveys, and we display accurate survey results based on it.

Pop-up forms use a cookie to determine if a website visitor has seen your pop-up or not, and whether or not to show the pop-up again according to your behavior settings.

The cookies used by MailerLite forms are: 

mailerlite:webform:shown

mailerlite:session_id

mailerlite:forms:submitted:[ID]

If you’re using the Shopify integration, mailerlite_visitor_token cookie is additionally used to enable Abandoned cart automation triggering.

Note on cookies in landing pages:

MailerLite landing pages only place essential cookies, which is why the “Reject all” option is not available in the default Notification bar. However, you can always add additional cookies and create your own cookie banners that include a “Reject all” button using a Custom Code block or the Header & Page Code injections.

An example banner text could be:

“This website uses only essential cookies necessary for its operation. For details, please refer to our Cookie Policy.”

Last time edited: Sep 15, 2026