Mobile first = user first = content first. This is the way all our Web sites should be made. Thinking mobile first forces you to only keep what matters in our sites. We have to think about usability & content because people on mobile have very little time and screen space.
Jeffrey Zeldman @ An Event Apart in Washington DC 2012: Content First

Google empfiehlt Responsive Webdesign

Warum? Deshalb…

  • Using a single URL for a piece of content makes it easier for your users to interact with, share, and link to your content, and a single URL for the content helps Google’s algorithms assign the indexing properties for the content.
  • No redirection is needed for users to get to the device-optimized view, which reduces loading time. Also, user-agent-based redirection is error-prone and can degrade your site’s user experience (see “Pitfalls when detecting user-agents” section for details).
  • Responsive web design saves resources for both your site and Google’s crawlers. For responsive web design pages, any Googlebot user-agents needs to crawl your pages once, as opposed to crawling multiple times with different user-agents, to retrieve your content. This improvement in crawling efficiency can indirectly help Google index more of the site’s contents and keep it appropriately fresh.

Link zum Orginalartikel: Google recommends responsive design!