If you are using Responsive Web Design, use meta name="viewport" tag to tell the browser how to adjust the content. If you use Dynamic Serving, use the Vary HTTP header to signal your changes depending on the user-agent. If you are using separate URLs, signal the relationship between two URLs by tag with rel="canonical" and rel="alternate" elements.
Google’s local search results are displayed within Google Maps after a user searches for a keyword that includes a location, such as “pizza New York.” Landing within Google’s local search results requires that you have a Google My Business account. This is key for brick-and-mortar-based businesses because it puts your business in front of local people ready to buy.