Can i use a random website for a url?

i want to make a publisher account in unity but it says i need a url to use and i don’t have one of those, i want to make some good assets to maybe make a little profit off of

No, it’s required that you have a website. “2.1.f Publishers must have and maintain an active professional website. If we believe the website does not adequately represent you as a professional, we will reject your submissions.” Also, “2.1.d You may not insinuate from you publisher profile that you are affiliated with a company or organization that you have no connection with.” So putting false information will get you rejected. Basically, if you want to be published on the store, you need to show that you’re taking it seriously.