Connect your app to your website
In order for Google to recognize your app as the official application for your website, you must connect your app to your website through the Google Play Console and Webmaster Tools. Please follow the steps listed here.
After your app and your website are connected, if your app is using an HTTP scheme
for handling deep links, Google will automatically start indexing the content of your app using
URLs that Google has discovered through web indexing and that match the
intent-filter patterns in your
After your app content is indexed without errors, deep links can appear in Google mobile search results automatically.
If your app is using a custom URI scheme, you can still participate in App Indexing by specifying which deep links corresponds to your web pages using sitemaps, web annotations or the App Indexing API.
Regardless of whether your web content is indexed automatically or not, we still recommend that you publish your deep links using sitemaps, web annotations or the App Indexing API as we will discuss next.