According to the search results, there are over 3.9 million live websites that use Shopify2. Another source states that there are 4,309,969 live websites currently powered by Shopify1. It is important to note that these numbers may change over time as more websites are created or discontinued. Therefore, it is difficult to provide an exact number of how many websites you can have on Shopify. However, it is safe to say that there are millions of websites currently using the platform.