apple-app-site-association

The Apple App Site Association (AASA) file, commonly named apple-app-site-association, is used to enable Universal Links on iOS devices.

It allows developers to associate a website with an iOS app, so that links to the website open directly in the app rather than in a browser. This file is essential for creating seamless experiences between a company’s website and its mobile app by allowing specific URL patterns to automatically launch the corresponding app.

Technical Notes

The apple-app-site-association file is placed in the .well-known/ directory of a website, typically accessible via https://example.com/.well-known/apple-app-site-association.

It defines which URLs should be handled by the app and is signed using Apple’s guidelines to ensure security. This file is a crucial part of deep linking for iOS apps, offering users a smoother and more integrated navigation experience between mobile web and native apps.

Example

{
  "applinks": {
    "apps": [],
    "details": [
      {
        "appID": "ABCDE12345.com.example.app",
        "paths": [ "/blog/*" ]
      }
    ]
  }
}

Webflow

Webflow does not directly support this file, but redirects may work.

Webflow has recommended this approach;

https://share.getcloudapp.com/v1um4rqz

• Create your file, with the content you want
• Upload it to your site assets
• Get the URL of the uploaded asset
• Create a redirect from the path you need to your URL
• Publish your site

To ensure no problems with the redirects you can use a reverse proxy solution like Sygnal's Hyperflow to deliver your files reliably.

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