Movierulz uses a tactic called "domain hopping." When the government bans one domain (e.g., Movierulz.com), the operators launch a new one (e.g., Movierulz.pl, Movierulz.to, Movierulz.icu). They constantly change their digital address, making it very difficult for authorities to permanently shut them down.
Finally, using piracy sites like Movierulz is fundamentally unethical. It's a choice to consume a creative work without contributing anything to the artists, crew, and everyone else who worked hard to make it. Supporting this system, even indirectly, contributes to the very real financial damage it causes to the industry. eagle eye movierulz