Where are my subscribers coming from?
All lists have a growth report that outlines how much the list has grown monthly/weekly. Customers can be added through Klaviyo embed forms ($embed, $modal, $flyout, custom source), through the User Interface (Quick Add, Import), through a native integration (Mailchimp, Shopify, etc), or API (Klaviyo list API, 3rd Party platform integrations). To access the List growth tool, click into the subjected list. In the top right-hand corner, select the Reports dropdown, and review the list Growth Report.