!!top!!: M4uhd.cx

Or

The proper article for the website would be "the". m4uhd.cx

So, the correct phrase would be:

"m4uhd.cx is one of the popular streaming sites." Or The proper article for the website would be "the"

"Watch movies on the m4uhd.cx website."

I see you want to discuss the website "m4uhd.cx". m4uhd.cx