Universal Link Mastery
The ultimate toolkit for iOS developers to manage and verify Apple App Site Association (AASA) files.
AASA Lookup →
Inspect any domain's AASA file and understand how they configure their Universal Links.
AASA Generator →
Build your own compliant association file with our dynamic form and real-time preview.
Premium Development Services
Expert assistance for complex Universal Link implementations.
Full iOS Integration
I provide end-to-end Universal Link integration for iOS applications. From deep-link architecture and AASA configuration to AppDelegate/SceneDelegate implementation and robust error handling. Ensure your users have a seamless journey from web to app.
- ✓ Deep Link Architecture
- ✓ AASA Hosting Setup
- ✓ Swift/SwiftUI Integration
- ✓ Testing & Verification
How AASA Works
1. Association
The apple-app-site-association file creates a secure link between your website and your app. By hosting this file on your server, you prove ownership of the domain.
2. Verification
When a user installs your app, iOS downloads the AASA file from your domain. It verifies that the appID in the file matches the one defined in your app's Entitlements.
3. Routing
Universal Links use standard HTTPS URLs. When a user clicks a link, iOS checks the AASA rules. If the path matches, the app opens directly; otherwise, it opens in Safari.
Pro Tip: Deployment
Always host your AASA file at https://yourdomain.com/.well-known/apple-app-site-association. The file must be served over HTTPS with Content-Type: application/json and must NOT have a file extension.