Example of links to invite to the game
http://combats.link/5690da28632fc
After a person has clicked on the link, he redirects to the main page and he does not understand whether the ref has passed the link or so.

that's how it should be

why not redirect to the registration page?

should be

Well, 2 people who were given links, were not sure whether they went to the referral or not, as an option offer izi, would be the optimal solution