This is not possible to have two the same domain name, since it is a unique web address, so of you are thinking that there is a two binance the there could be a different web address example should be like, binance.com and the other one could be like bnance.com, or maybe you are seeing the same address but the other one says ads, but to make sure always check the website you are logging in, since once you have login and the site is a fake, for sure all you're fund will be lost, i have seen this question the other day, try to look in the beginners section, take care logging in if not sure do search or ask question.