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The technical term is a Digital Millennium Copyright Act. There's a bit more info on this page to get you started: https://support.google.com/legal/answer/1120734\. It's been a while since I've filed one of these but let me know if you run into trouble I'm happy to help. Also, I'd only use this as a last option. I'd still reach out to the company and see if they will no index the other site. Best of luck