Responsive Web Design is a way of designing websites based on layer fluid design. Combining some CSS and Java Script, these pages adapt to the device from which they are visualized, creating a satisfactory user experience regardless of the device from which the website is consulted.
The great advantage of this type of designs is obvious: user experience will always be correct regardless of the device from which it connects. In addition, if it is necessary to update some of the page, it is easier to do it only once and not for each type of domain by device to which it is connected.
Therefore, if the actions undertaken for SEO positioning are carried out only on a site and not on several, in the Linkbuilding phase everything will point to the same place and Google will determine a better relevance.
Where does the difference between pages fall? In design. If the same amount of effort is applied for a positioning is not the same as aimed at several pages and dissolves, that to a single and concentrate.
We invite you to see the video about a question asked Matt Cutts, director of the department against the Google web spam, who thinks of this quite recurrent topic. While the decision will depend on the type of project that is being carried out, a Responsive website will always be easier to administer, and it is the tendency towards the future.
In summary, the Responsive Design is one of the best allies for SEO positioning, helps avoid duplicate content and concentrate all web positioning efforts on a single strategy.
Eduardo Caballero.