This depends on the promotion however the majority do give Rewards for online purchases. Otherwise, this will be clearly stated in the Reward details.
Note that for online purchases, you need to pay with an account that is connected to Cake.
Payments made via credit cards will not obtain a Reward since we do not receive the complete details from the banks for purchases made via these means.💳
It is, therefore, best to make payments via Bancontact, Payconiq or Maestro.