Counterpart domains are domains with the same name but with a different extension (e.g. mydomain.com and mydomain.net).
Counterpart notifications enable you to find out the state and expiration date of the counterparts of your domain, for .com, .es, .biz, .net and .info extensions. You will also receive reminders a few days before any of these domains expire so that, if you are interested in registering them, you can do so in good time.
You can activate or disable counterpart notifications from the Domain Protection control panel.