ANDROID APP LINKS
assetlinks.json Validator
Check the Digital Asset Links file that Android uses to verify App Links for your domain.
What this assetlinks.json validator checks
/.well-known/assetlinks.jsonis reachable over HTTPS.- The endpoint returns HTTP 200 without a redirect.
- The response is valid JSON with an
application/jsoncontent type. - Android app targets contain package names and SHA-256 signing certificate fingerprints.
- The required
delegate_permission/common.handle_all_urlsrelation is present.
Common Android App Links failures
Typical failures include redirects, incorrect package names, fingerprints from the wrong signing key, missing relations, or a JSON response that is served with an unexpected content type.
Continuous monitoring
After validating, you can verify DNS ownership and monitor the file every 30 minutes. The monitor compares normalized association semantics so additions and breaking removals can be distinguished.