The mobile-friendly update will boost the rankings of mobile-friendly pages… in mobile search results worldwide. (Conversely, pages designed for only large screens may see a significant decrease in rankings in mobile search results.)” In other words, sites that work on mobile will outrank sites that dont when all other things are equal.So what does a site need to do in order for Google to consider it “mobile-friendly”?The companys guidelines suggest that the site start by avoiding any content that requires Adobes Flash Player.
via Google champions responsive Web design in page ranking update | Ars Technica.