Provider
SnapchatSee all Snapchat cookies →Snapchat authentication / ad-attribution cookie used to associate visitors with Snapchat ad clicks.
1 year
Snap Group Limited
sc_at 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 sc_at 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.