Avoid Redirecting Users From Mobile Sites to an App
When redirecting from your mobile site to an app, make sure that users are able to access your site’s content normally from the search results. John recommends adding a banner to help users navigate to your app by choice.
Algorithms Exist/ed to Check App and Webpage Content Equivalent
Google has (or had) a number of algorithms set up to double check to make sure content app content is equivalent webpage content. John recommends using Firebase for app indexing wher can submit support questions.
Deep Linked App Pages Should Match Desktop Pages
The content on your deep linked app pages should match the content on the desktop pages.