The root of the url is buyiphone.apple.com. Apple's website to buy iPhones has the root url store.apple.com.
It's clear you don't know much about how domains work.
That is part of the apple.com domain. You can make subdomains with any prefix you want before the apple.com.
If this is a joke, just know that the URL in the address bar is an apple domain. I can't tell you if the webpage below that came from that URL though.
Just checked again