Abstract: Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing a program and method for surface-based zone creation. The program and method provide for receiving a snapshot of a webpage, the snapshot depicting a plurality of elements; determining coordinates and dimensions for each of the plurality of elements; identifying, using the coordinates and dimensions for each of the plurality of elements, parent-child relationships within the webpage, based on a first requirement that a child element has a threshold amount of overlap with a parent element, and based on a second requirement that the child element has a smaller area than that of the parent element; and determining zones for the webpage based on the identifying, the zones being usable to perform zoning metrics with respect to the webpage.

Abstract: A parent tag in a parent webpage displayed on a computing device sends a unique identifier to a child tag for each child page within the parent webpage and receives a response from a first child page. The parent tag generates a channel message comprising the unique identifier for the first child page and a recording status and sends the channel message to the first child page. The parent tag receives a content message from the first child page comprising activity data captured according to the recording status and comprising one or more actions performed by a user in the first child page. The parent tag sends the activity data comprising one or more actions performed by the user in the webpage and activity data comprising one or more actions performed by the user in the first child page to a server system to generate a session replay.