WhoIs is a globally recognized query and response platform that you can use to determine the registered owners of a domain or IP address. Google bots may view domains with Private WhoIs activated, as illegitimate. Private WhoIs and other factors that are considered as black hat could compromise your site’s ranking. If in doubt, consult with Singapore’s top SEO firm: MediaOne.
The above three tips will hinder competitors from copying your content. However, it would be best to do more to get ahead of the competition