For further clarification, I want to know how to view followers from the site itself. I know you get an email, but suppose someone stops following you, then you could not find out who it was. What I mean to say is that you cannot see who is following you at present.
Well u r supposed to go on your profile (this works only on 'the online duolingo') which is generally on the dropdown menu next to your profile pic... and then scroll a bit to see a friends section with two headlines- following and followers...
Simple work ;-)
I believe that is only the people who you have followed/whom you have followed back. I'm currently looking for someone who friended me but I can't find her...now I have to have to ask her for her username and search her in order to friend her.