does someone know you block them?
16683
When you block someone, that person won't be able to find your profile, posts or story on Instagram. People aren't notified when you block them.
1076239
No one will ever receive a notification that you've blocked or unblocked them. They'll only be alerted if they try to follow you or interact with your Pins.
23734
Some important things to know about block: Blocked accounts do not receive a notification alerting them that their account has been blocked. However, if a blocked account visits the profile of an account that has blocked them, they will see they have been blocked (unlike mute, which is invisible to muted accounts).
743174
Blocking someone on WhatsApp is pretty straightforward but the blocked person will not be notified of the move. There are, however, clues. Users will no longer see a contact's last seen or online status in the chat window.
343674
You won't get notified automatically if someone blocks you. But you will see a notification if you try to send them a message. We know it feels horrible to be blocked by someone you like.
337776
Yes, you can. Simple go to https://www.facebook.com/settings?tab=blocking and enter their name. Make sure it is the right person you are blocking, perhaps you remember their photo. I just did it, someone blocked me and I went to the above address added their name, found them, and blocked them back.
1273936
No, if you block them, they will not appear in a search, and you won't be able to see their profile. Just go through your friends account and view their timeline. Problem solved.
489579
You will not receive notifications from accounts you block, or accounts that you do not follow who mention you in conversations started by accounts that you block. You will, however, see notifications from accounts you follow when they mention you in a conversation started by an account you block.
648068
What Happens When You Block Someone. The person you have blocked won't get a notification telling them you did it. Also, they will still be able to look at your profile and they will even see if you visit theirs. Blocking them only stops them from messaging you again.
44446
People will not be notified when you block them. You can also block mesages from users on Facebook as well. They won't be able to contact you in the Messenger app if you do this - and they also won't be notified.
718709
Not likely. Just make sure the person you blocked doesn't have access to your computer, phone, tablet, etc., and change your password to something that person wouldn't be able to guess (best practices involve using passwords with upper and lower-case letters, numbers, and special characters such as * & $ #).
20474
While blocking someone does stop them from seeing your Stories or sending you Snaps, they won't receive a notification that you blocked them. The only way they could tell is if the user searches for you in their friends list. If you block them, you won't show up in their search.
86826
There's no definitive way to determine that you've been blocked; for instance, you're not going to get a notification or see an indicator in that person's contact info. That would infringe on the privacy of the other user.
676844
They don't get a notification that they are blocked, but surely if they go to look for you, they won't see you and then if they try to message you - they won't be able to - so, with a certain amount of deductive reasoning - they will figure it out!
376920
You can't find the person in search. If you enter their name in the search box and they no longer appear, though, that's a sign that person is blocking you.
55221
Yes, you can tell sometimes if a person block you. When someone blocked your emails, even if you sent to them, in the sent folder, it will show as being sent to you, even if you put the email of the person who blocked you.
698576
As far as I know, there is no such option to block a person who has already blocked you. ... As far as I know, there is no such option to block a person who has already blocked you. For blocking feature to work, you are required to find that person on Facebook.