[martynov]

вот точный текст инструкции:
Follow the instructions in the window and go to the website of your registrar. You will be asked to enter your “www” CNAME. The CNAME for your domain is “web.me.com”. Be very careful of the domain name you enter, as some registrars require a period at the end of your domain name, as in "web.me.com."

Note: Some domain registrars require you to contact them to make this kind of CNAME adjustment. Contact your own domain registrar for more information.