How to know if someone you're not friends with blocked you on Facebook?

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So... there's a person in Facebook that I'm not friends with but I've been wanting to add them for a while. I've just been scared. I've creeped on them before ( haha) when I recently went to the page, I got an error message. Saying the page doesn't exist. I'm able to view it form another persons Facebook but not mine. So is it possible to block someone you're not friends with? PLZ help ASAP.
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I can still search them and it says we have a mutual friend. I just can't view anything, but I can if I'm on someone Estes who also has a mutual friend.