Deep Links are links that point to content not on a website, but within a smartphone or tablet app. These links therefor open up the app on a mobile device rather than opening up a webpage. In the event that the mobile user does not possess the app required to load the content, they will be sent to that app’s relevant page on either Google Play Store or the Apple iTunes Store.
Apps developers must sign up with Google to allow their crawlers to access and index their apps, which enables the creation of Deep Links. These links are considered useful for web users because the enhance user experience, encourage users back onto apps, and increase the overall visibility of an app on the internet.