At the moment, we can optimize only one website for each Cobiro account. When you set up your account you choose one website URL for your Google advertising. The same applies with Facebook where you can create Link Ads for a single Facebook Page and website URL.
If you want to use Cobiro to create and run ad campaigns for multiple websites URLs, you need to create another Cobiro account using a new email address and link it to the same (or another) Google Ads account.
Your Cobiro account will soon open to multiple URLs. Until then you are welcome to try our Website Builder.