It's a list of sites same Adsense at ca-pub-4013521895230863 Publisher ID. To find out the Same Adsense of any site in the Top Sites, just click the name of the site and you'll be taken to the "Site Info" page for that site.
It's a list of sites same Adsense at ca-pub-4013521895230863 Publisher ID. To find out the Same Adsense of any site in the Top Sites, just click the name of the site and you'll be taken to the "Site Info" page for that site.