The WHOIS Data Reminder Policy (or WDRP) is an ICANN policy designed to protect domain name registrants. The policy requires your registrar to formally remind you once a year to review and update your contact information. The reminder, which is also referred to as a WDRP Notice, is usually sent via email and asks you to review the WHOIS information, including contact information, associated with your domain name(s) and make corrections or updates when necessary.