Some monetization and analysis systems use recurrent identifiers for all platforms, registered in a single account.
Our service analyses all websites, found in search engine results, and saves identifiers of such systems as Google Adsense, Google Analytics, Relap.io, and some others.
Reports from the "Owner's websites" group show domains, grouped by one of such identifiers. It is often useful to see, what additional projects a particular competitor has. Now data on them is available for analysis!