Grandma: I'm typing domain.com into my browse on [random device] and it doesn't work.
Nerd grandchild: well that's because it doesn't exist.
Grandma: But it works on my other computer.
Nerd grandchild: that's because the browser tries lots of domains like www.domain, domain.org and so on when you enter domain.
Grandma: yes, I noticed that. When I enter www.domain.com, it automatically corrects it to domain.com. So that's must be the right one, surely?
Nerd grandchild: Nope. domain.com is the correct domain. It's just trying not to confuse you.
Grandma: ?
Grandma: I'm typing domain.com into my browse on [random device] and it doesn't work.
Nerd grandchild: well that's because it doesn't exist.
Grandma: But it works on my other computer.
Nerd grandchild: that's because the browser tries lots of domains like www.domain, domain.org and so on when you enter domain.
Grandma: yes, I noticed that. When I enter www.domain.com, it automatically corrects it to domain.com. So that's must be the right one, surely?
Nerd grandchild: Nope. domain.com is the correct domain. It's just trying not to confuse you.
Grandma: ?