Forum Moderators: Robert Charlton & goodroi
we’d like to give you Google’s recommendations for building smartphone-optimized websites and explain how to do so in a way that gives both your desktop- and smartphone-optimized sites the best chance of performing well in Google’s search results.
Recommendations for smartphone-optimized sites
The full details of our recommendation can be found in our new help site, which we now summarize.
When building a website that targets smartphones, Google supports three different configurations:
Sites that use responsive web design, i.e. sites that serve all devices on the same set of URLs, with each URL serving the same HTML to all devices and using just CSS to change how the page is rendered on the device. This is Google’s recommended configuration.
Sites that dynamically serve all devices on the same set of URLs, but each URL serves different HTML (and CSS) depending on whether the user agent is a desktop or a mobile device.
Sites that have a separate mobile and desktop sites.