To know if someone blocked you on Facebook, check the following signs:
- They no longer appear in your Friends List.
- You cannot find them when you search for their name on Facebook.
- You cannot see their profile page; visiting their profile URL shows "content not available."
- You cannot tag them in posts or invite them to events or groups.
- You cannot send them messages on Facebook Messenger; messages may fail or show "This person is unavailable."
- Their posts no longer appear in your Facebook feed.
If these signs are present, it is likely that the person has blocked you on Facebook. However, remember some signs may also appear if they unfriended you, deactivated, or deleted their account, so checking from another account or asking a mutual friend can help confirm.
