You can use both AdSense and Adsterra on the same website. You need to follow some basic rules. Google AdSense allows you to run other ads as long as you don't violate their policies. Adsterra can be used to display ads alongside AdSense ads. You must ensure the ad placements don't conflict. You should avoid excessive ads or intrusive pop-ups. You must also keep an eye on your website's performance. You may need to test different ad combinations. You can increase your revenue by using both platforms smartly. Always review the policies of both platforms.