Friend or Foe? How Google’s Mobile-Friendly Update Will Impact Retailers

Note that this can be difficult to detect. Google's mobile-friendly testing tool enables single-page testing. To identify URLs that aren't rendering mobile-friendly content at scale, you may need to use automated mobile SEO tools.

App Indexation
Retailers with Android apps have a new opportunity to get app content indexed in Google, so searchers who have that app can open deep app "pages" from the search results. This is known as deep linking. Make sure your Android app has the code to take advantage. Pure Oxygen Labs found that fewer than 10 percent of top retailers have activated deep link support in their Android app.