Which is which? Here’s a way to remember. The backslash leans backward. The slash leans forward. There is no “forward slash.” When it’s in a web address, it’s a slash. I don’t care what the guy on the radio or TV said. Whoever wrote the ad copy is incorrect. It’s fun to say, but it’s wrong. Web addresses only contain slashes. In fact, there are only two common situations in which a backslash is the correct character, used as an escape character and in a Windows file path. E.g., C:\Users\Noob. So quit saying backslash, especially in the context of a web address.
That is all.