A common misconception is that having multiple domain names will increase your site’s search engine rankings. It’s not uncommon for a business to own their name as a domain, as well as several keyword-specific domain names. While that’s not a bad idea, don’t buy extra domain names with the thought that you’ll point them to your existing site for an SEO boost. It just doesn’t work that way.
Search engines index content – web pages, not domain names. …
