Server systems and methods to track digital content pertaining to real estate listings use markers embedded within digital media files. The digital media files are accessible for presentation to client computing platforms through real estate search servers. Responsive to a digital media file being presented, for example through a browser software application, on a client computing platform, information related to browsing activity on the client computing platform is transmitted to a server that associates individual ones of the digital media files with individual ones of the real estate search servers through which a digital media file is presented. A server determines information based on browsing activity pertaining to web pages served through a real estate search website. The web pages include real estate listing content. Providers of the real estate listing content are compensated accordingly.