A computer-implemented method for customizing network detection results may include identifying a connection between a client device and a frontend server of a web-based computing system. The method may also include obtaining at least one criterion for customizing a network-carrier analysis of the connection for use by a backend application of the web-based computing system. In addition, the method may include performing, based on the criterion, the customized network-carrier analysis of the connection to create a customized report of network-carrier information about the connection. Furthermore, the method may include providing the customized report of network-carrier information to the backend application. Finally, the method may include performing, based on the customized report, at least one task associated with improving a function of the web-based computing system. Various other methods, systems, and computer-readable media are also disclosed.