Abstract: Techniques described enable creation of a single log containing information from both server-side and client-side logs. A logging service receives page requests and other data from a user operating a computing device. These page requests are then stored in a server-side log. The logging service also receives interactions made by the user on a displayed page. These interactions are then stored in a client-side log separate from the server-side log. The logging service then converts a format of the data in the client-side log and merges the client-side and server-side logs to form a single log. A service provider may then analyze this single log to track how this and other users navigated the pages associated with the page requests.