# Deep Linking Glossary

> Definitions of deep linking, attribution, and mobile growth terms: Universal Links, App Links, AASA, deferred deep linking, and more.

- Canonical: https://redirectly.app/glossary

- [Android App Links](https://redirectly.app/glossary/android-app-links.md): Android's verified deep linking mechanism that uses Digital Asset Links to associate HTTPS URLs with an app, allowing links to open directly in the app without a disambiguation dialog.
- [App Indexing](https://redirectly.app/glossary/app-indexing.md): The process of making in-app content discoverable and surfaceable in search engine results, allowing users to open app screens directly from Google or Apple search.
- [App Tracking Transparency (ATT)](https://redirectly.app/glossary/app-tracking-transparency.md): Apple's iOS framework that requires apps to request user permission before tracking their activity across other companies' apps and websites.
- [Apple App Site Association (AASA)](https://redirectly.app/glossary/aasa.md): A JSON configuration file hosted on a web domain that tells iOS which URL paths should open in a native app, enabling Universal Links.
- [Contextual Deep Linking](https://redirectly.app/glossary/contextual-deep-linking.md): Deep linking that carries metadata (context) about the user's pre-click journey, enabling personalized in-app experiences based on the source, campaign, or content that brought them.
- [Deep Linking](https://redirectly.app/glossary/deep-linking.md): A technique that uses URIs to link directly to a specific screen or piece of content within a mobile app, rather than simply launching the app's home screen.
- [Deferred Deep Linking](https://redirectly.app/glossary/deferred-deep-linking.md): A deep linking technique that preserves the intended destination through the app install process, routing users to specific content after they install and open the app for the first time.
- [Mobile Attribution](https://redirectly.app/glossary/attribution.md): The process of identifying which marketing channel, campaign, or touchpoint led a user to install or engage with a mobile app.
- [Mobile Measurement Partner (MMP)](https://redirectly.app/glossary/mobile-measurement-partner.md): A third-party analytics company that helps app marketers measure and attribute installs and in-app events across advertising channels.
- [QR Code Deep Linking](https://redirectly.app/glossary/qr-code-deep-linking.md): The practice of encoding deep links within QR codes so that scanning routes users directly to specific in-app content, bridging offline and online experiences.
- [SKAdNetwork](https://redirectly.app/glossary/skadnetwork.md): Apple's privacy-preserving framework for measuring the effectiveness of advertising campaigns that drive app installs, without revealing user-level data.
- [Smart App Banner](https://redirectly.app/glossary/smart-banner.md): A banner displayed on a mobile website that promotes the native app, using deep links to route users to the corresponding in-app content when tapped.
- [Universal Links](https://redirectly.app/glossary/universal-links.md): An iOS feature that allows HTTPS URLs to open directly in a native app instead of Safari, verified through an Apple App Site Association (AASA) file.
- [URI Schemes](https://redirectly.app/glossary/uri-schemes.md): Custom URL protocols (like myapp://path) that enable basic deep linking into mobile apps, though without the security and fallback benefits of Universal Links or App Links.
- [UTM Parameters](https://redirectly.app/glossary/utm-parameters.md): Standardized URL query parameters (utm_source, utm_medium, utm_campaign, etc.) used to track the effectiveness of marketing campaigns by identifying traffic sources.

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