The EXP_* cookie

EXP_* is a cookie set by Amplitude, from Amplitude Inc. Stores the visitor identity used by Amplitude Experiment.

The * in the name stands for a part that changes from site to site, such as an account or measurement ID.

Set by

Duration

1 year

Does the EXP_* cookie require consent?

EXP_* is used for analytics, 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 EXP_* 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, EXP_* included.

How to put EXP_* behind consent

Remove the Amplitude snippet from your site and add your Amplitude ID under Integrations in Consentify instead. Consentify then loads Amplitude only after the visitor has accepted analytics, so EXP_* is never set before consent.

View all integrations

Free scan, no account

Not sure what's running on your Amplitude 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

Other cookies set by Amplitude

Cookie	Purpose	Duration
AMP_*	Stores the Amplitude device ID, user ID and session ID used to stitch events together.	1 year