Because copyright holders constantly monitor and send takedown notices to domain registrars and hosting providers.
Because 9xmovies hosts copyrighted content without authorization, it has been banned by multiple government agencies, including the Department of Telecommunications (DoT) in India and similar bodies worldwide. ---- 9xmovies Proxy
A is essentially a mirror or alternative URL that bypasses the ISP-level blocks imposed on the original 9xmovies website. These proxy sites have different domain extensions (such as .info, .club, .icu, .online) but host the same pirated content. ---- 9xmovies Proxy