How do 你 know if you've been blocked?

What you've described is exactly how 你 find out you've been blocked. 你 know a page is there, but 你 can't see it 或者 find it in search, and other users can 确认 that it is there. That's how being blocked works.

Here are three tips of finding out if your friend has blocked 你 on Facebook:

1.)Ask mutual 老友记 if the person whom 你 suspect has blocked 你 is still on their 老友记 list. If they can view his 或者 her profile, it is a sign that 你 have been blocked. Since 你 have already confirmed this, then yes, 你 have been blocked.

2.)Go through old conversations with that person. Click the 'Actions' button and select 报道 Conversation. If 你 see 'Blocked' 下一个 to the person's name, this means that 你 have been blocked 由 the person. If 你 see 'Report' instead of 'Blocked' then it implies that the person has deactivated the account.

3.)Access the person's 个人资料 link. If 你 get a "Page 你 requested was not found." it is either 你 were blocked 或者 the account has been deactivated. Try to access the 个人资料 link with a new account 或者 another account to know for sure.

Source: link

Lucas Chad blocked me

Because when I look for my friend his 个人资料 comes up with a blue square at it says This 个人资料 is locked