A system may include a performance analytics database defining key performance indicators (KPIs) associated with the managed network and defining dashboards that are configured to specify, on a performance analytics graphical user interface (GUI) within a managed network, graphical representations of the KPIs. The system may also include a diagnostic database containing representations of a plurality of tests configured to determine whether the KPIs and the dashboards comply with pre-defined rules. The system may also include a computing device operational to execute a diagnostic software program configured to: obtain a representation of a particular test that includes a plurality of rules; apply each of the rules to the KPIs and the dashboards stored in the performance analytics database; and write, when applying at least one of the rules indicates a problem, an associated severity, problem description, and solution description to the diagnostic database as output of the particular test.