Are Cheez Its Vegan?

Guys, I was just munching on some Cheez Its and it got me thinking – are these little cheesy crackers actually vegan? I mean, they’re made with cheese, but is it real cheese or some kind of vegan substitute? I’m not a vegan myself, but I have friends who are and I want to make sure I’m not accidentally offering them something they can’t eat. So, if anyone knows the answer or has any insight, please let me know! Thanks in advance.