When you purchase an application, in fact, you have purchased a license for using it. There are two types of license you can purchase, "Regular License" and "Extended License". A regular license is suitable for using the product on one single domain but with the extended license, you can use the product more than once. We provide 2 types of extended licenses. One for using Antares on max. 3 domains and one for max. 10 domains. Please feel free to contact us via info email if you need more customized license for this product.