Study: Google Plus Ones and Relevant Content Closely Linked with High Google Search Rankings
But ‘keyword domains’ are less important according to a comprehensive analysis of factors that correlate with ranking highly in Google US searches in 2013
Web pages that rank higher in Google searches tend to have more Google+ plus ones and Facebook shares. While having a relevant keyword in the web site domain name or web address now seems less closely linked with high rankings according to new research. And while pages with higher quality content rank better, top brand web pages apparently continue to automatically rank in top positions without obeying the same rules as other sites.