Domain privacy protection, also known as WHOIS privacy or domain privacy services, is an optional feature that adds an extra layer of security and privacy to your domain registration. When you register a domain name, your contact information, including your name, email address, and phone number, is typically made publicly accessible in domain registration databases. Domain privacy protection replaces this personal information with generic contact details, protecting your privacy and reducing the risk of spam and unwanted contact. While not mandatory, domain privacy protection is recommended for individuals and businesses looking to keep their personal information confidential.