Basically, a deeplink is a browser URL. You can use it to direct users to a specific area within your website upon clicking on the web push notification.
Adding a deeplink
By default, Batch will redirect your users to the homepage of your site (or the page where Batch was integrated into). If you wish to redirect your users to a particular page on your website, you can include a deeplink directly from the message editor:
💡 You can also direct your users to an external page of your website, such as independent landing pages or even social networking sites.
Tracking your campaign
You can easily collect your Batch campaign opens by creating the parameters related to your campaign in your analytics tool (AT Internet, Google Analytics, etc.) and then adding them to the deeplink of your push campaign.
For more information, follow this documentation: How Can I Track Web Push Opens in AT Internet?