To check if someone has blocked you on WhatsApp, look for these key signs:

• No "Last Seen" or "Online" Status : You won't see their last seen timestamp or online status in the chat window. However, this alone is not definitive because they might have changed their privacy settings to hide this information

• Profile Picture Disappears : If their profile photo is no longer visible to you, it could indicate they blocked you or removed their profile picture

• Message Checkmarks : When you send a message, you will only see a single gray check mark (message sent) but never the second check mark (message delivered). This suggests your messages are not reaching them, a strong sign of being blocked

• Unable to Add to Group : If you try to add the person to a new WhatsApp group and they do not appear in the group members list even after adding, it means you are blocked

• No Profile Updates : You won't see any updates to their profile such as changes in status or profile picture after being blocked

• Calls Don't Go Through : WhatsApp calls to the person will not connect, which can also indicate blocking, though it could be due to other reasons like disabled calls

To confirm, you can also ask a mutual friend to check if they can see the person's last seen or profile picture. If the friend can see them but you cannot, you are likely blocked

. These combined signs provide a reliable way to check if someone blocked you on WhatsApp, as the app does not send any direct notification about blocking