Does it /? at the end of the url with a double and how to remove it?

Question

htaccess

I already got rid of all the duplicates, but I can’t get rid of /? and / at the end of the main url.

When analyzing for duplicates, be1.ru shows that /? at the end of the url, this is a duplicate of the page, but I could not find information about this on the net.

Tell me, is site.ru and site.ru/ really? are these duplicates? If yes, how can you get rid of them? Thank you.