Publishing an application on OK.RU?

Question

Classmates

I plan to publish the game on OK.ru Tell me
who came across:
1-rewarded video works in the web version of games? on the apiok.ru website it is clearly indicated that the revarded video works in instant games, but it is not specified about the web games.
2-in the list of documents required for the conclusion of the contract, "a copy of the Domain Name Registration Certificate" is indicated. why do you need a domain?