Note: To transfer your domain you’ll need an authorization code (also known as an EPP code) from your current registrar. Some domains, namely top-level domains (ccTLDs) don’t require an authorization code.
1. Log in to your account at https://admin.1and1.com.
2. Under “Domains & Web Space”, click “Domains.”
3. Click the domain name you want to transfer then click “Info.”
4. The authorization code will appear on the following page. Save this code to complete the domain transfer.