# Deep Link

> Deep Link routes a supported URL to a particular destination inside an installed mobile app and provides fallback behavior when the app cannot be opened.

- [Canonical HTML page](https://www.inappredirect.com/deep-link)
- [InApp Redirect LLM index](https://www.inappredirect.com/llms.txt)

## When to use Deep Link

Use Deep Link when the ideal destination is content inside a supported mobile app rather than a website. Common journeys include ecommerce products, videos, music, messaging, travel, creator campaigns, affiliate traffic, and email links.

## How it works

A deep link carries destination context and attempts the supported native-app route. When the app is unavailable or the destination cannot be opened, the visitor should continue through an appropriate web fallback.

## Limitations

Native app opening depends on the destination app, operating system, installation state, app configuration, device settings, and platform support. A web link cannot override mobile operating-system security or force an unsupported app action. Query parameters can be retained where the destination and routing method support them.

## Related resources

- [App Opener](https://www.inappredirect.com/app-opener/index.md): Create and test links for supported app destinations.
- [SmartLink](https://www.inappredirect.com/smart-link/index.md): Open website destinations in Safari or Chrome.
- [Pricing](https://www.inappredirect.com/pricing/index.md): Current plans, product access, redirect credits, and billing guidance.
- [Use Cases](https://www.inappredirect.com/bypass-inapp-browser-use-cases/index.md): Browser-routing scenarios for brands, creators, apps, and agencies.