However, it is also possible that this Contact of yours may have been busy or lost interest in being active on WhatsApp. In case the Profile Picture of this person appears not to have been updated, it provides a reason to suspect that this person may have blocked you on WhatsApp. The second method of finding if someone has blocked you on WhatsApp is to take a look at WhatsApp Profile Picture of the person that you suspect has blocked you on WhatsApp. This Contact of yours may have blocked you on WhatsApp, in case you are quite used to seeing the Last Seen Time for this Contact and now this information has suddenly gone missing. Next, tap on the Chats tab located at the bottom of the screen in case of iPhone and top of the screen in case of Android Phones. This can provide a clue, in case you find that your Contact is active on WhatsApp and still not responding to your Messages. However, there are certainly some indicators that can suggest whether or not someone has indeed Blocked you on WhatsApp.
In order to maintain the privacy of its users, WhatsApp does not provide an official way to find out whether someone has blocked you on WhatsApp. When someone who was in touch with you on WhatsApp goes silent or does not respond to messages, you may start wondering whether this person has blocked you on WhatsApp.