Provider
KlaviyoSee all Klaviyo cookies →Klaviyo identifier cookie. Tracks the visitor across sessions for email campaign attribution and audience syncing.
2 years
Klaviyo, Inc.
__kla_id is a advertising cookie. Under Art. 5(3) ePrivacy Directive and the GDPR, it must not be set before the visitor has given prior, informed, freely-given consent.
If your scanner finds __kla_id on a page before the visitor interacts with your consent banner, that's a violation — the cookie loaded without a legal basis.
Fix: gate the script that sets this cookie behind your CMP, so it only fires after the relevant consent category is accepted.
Run a free CookieSentry scan to find every cookie set before consent — including __kla_id — and get a downloadable evidence PDF.
Run a free scan →