The full list of VATable online services is set by article 174.2 of the Tax Code of the Russian Federation.
The list includes, but not limited to, providing software, games, music, e-books, online cinema, advertisements, domain names, hosting, website, webpage support, trading platforms, search engines, social networks etc.
There are a lot of international companies that are already registered as an online service providers in Russian Tax Authorities, such as Google, Facebook, Amazon, Booking.com, and others. At the beginning of 2020, the total number of registered companies is more than 2 000. The full list of registered companies is presented on the official webpage of the Tax Authorities.