When I first started out doing web design work I only focused on the design. I did not think ahead 
how to prepare the site for promotion until I had finished the actual design. I think a lot of web designers still think and act this way…they build the site first then think about the marketing aspect later.
This is a big mistake!
A web designer should build elements within the design making it easier to attract search engine traffic.
16 Elements You Must Include in Your Site Design Web Host Directory