The mcforms-*-sessionId cookie
mcforms-*-sessionId is a cookie set by Mailchimp, from The Rocket Science Group LLC. Session ID for Mailchimp signup forms and pop-ups shown on the site.
The * in the name stands for a part that changes from site to site, such as an account or measurement ID.
Set by
MailchimpDuration
Session
Category
Marketing
Needs consent
Yes
Does the mcforms-*-sessionId cookie require consent?
mcforms-*-sessionId is used for marketing, so under the GDPR and the ePrivacy rules it may only be set after the visitor has agreed. Showing a banner is not enough on its own: the cookie must not be set before the visitor clicks accept.
Does your site set mcforms-*-sessionId before consent?
A free scan loads your site the way a new visitor sees it and lists every cookie that is set before anyone has said yes, mcforms-*-sessionId included.
How to put mcforms-*-sessionId behind consent
Remove the Mailchimp snippet from your site and add your Mailchimp ID under Integrations in Consentify instead. Consentify then loads Mailchimp only after the visitor has accepted marketing, so mcforms-*-sessionId is never set before consent.
View all integrationsNot sure what's running on your Mailchimp site?
Scan it first and you'll know exactly which scripts need consent before you set up the banner. Takes about ten seconds.
- Results in about 10 seconds
- No account needed
- Shareable report link