If you are suspecting that a contact has blocked you on WhatsApp and you want to find out in the best way you can, guide yourself with these 2 tricks.
You must create a group in Wasap and try to add the contact you suspect. If you get the following error: “You can not add (Name of your contact)”, then your suspicions are true and your contact has blocked you on WhatsApp.
Ask a friend to add the contact to the phonebook to observe that when they are online on your friend’s WhatsApp, they are also online on your WhatsApp.
If the previous options do not work… you can send a message to your contact, if only one gray check appears (the gray or blue palomics) and not two gray or blue checks, your contact has probably blocked you.