Android App Links error: “Digital Asset Links Not Accessible”

Introduction

When configuring Android App Links, you may see a warning:

“Digital Asset Links Not Accessible

Google needs access to the following URL in order to read the digital asset links for your Android app:

https://app.domainsample.uk/.well-known/assetlinks.json

To ensure Android App Links work as intended, please contact your host to enable access to this URL.”

This indicates that Google cannot retrieve your assetlinks.json file. Follow the steps below to enable access and resolve the error.

Contact Your Hosting Provider

1. Reach out to your hosting provider or server administrator.
2. Ask them to enable public HTTP GET access to /.well-known/assetlinks.json.
3. Confirm there are no authentication, firewall, or rewrite rules blocking that path.
   

Obtain the JSON Snippet

1. Log in to Google Play Console and select your app.
2. Navigate to Test and Release > Setup > App Signing.
3. Under Digital Asset Links, copy the provided JSON snippet.
   

Generate and Upload a New Build

1. After confirming assetlinks.json is accessible, rebuild your Android release (APK or AAB).
2. In Google Play Console, go to your Production track and upload the new build.
3. Click Save to finalize the release.
   

Troubleshooting and FAQs

Q: The file still returns a 404 error—what now?
A: Double-check the folder path and filename (.well-known/assetlinks.json) and ensure your web server serves hidden directories.

Q: The error persists after all changes.
A: Flush server and CDN caches, then retry. If it still fails, ask your hosting provider to review server logs for blocked requests.