If you want to transfer a domain from one registrar to another, you will have to go through several safety procedures. One of them is getting a special EPP authentication code from the present registrar – on the condition that you are the registrant, since the code is sent to the domain owner’s email account and nobody else can see it. You’ll need to give this code to the new registrar, or else they will not be able to begin the domain name transfer procedure. The EPP authentication codes are case-sensitive and may contain digits or special characters such as dots or commas, which can be easily miswritten, so make sure you copy and paste the right code. As an extra protection measure, the transfer authorization code for a domain may be changed regularly. Certain domain registrars call this code a domain secret, an Auth key or a domain password as well.