Why do they do this?

There's a site emp3s dot me it's going fine some days ago.. now when I open it, it goes to emp3s dot cc . Structure and design of site is same. Now it pop-ups question in my mind… Why the hell admin changes the domain…? How new site becomes popular on Alexa and Google in just few days and getting Googles organic traffic? and is he using the old SSL certificate from .me site or using new one now? Because both sites are https.