{
"domain": "airbnb.com",
"platform": "both",
"grade": "A+",
"score": 100,
"summary": {
"errors": 0,
"warnings": 0,
"infos": 0
},
"ios": {
"found": true,
"source": "well-known",
"url": "https://airbnb.com/.well-known/apple-app-site-association",
"statusCode": 200,
"contentType": "application/json",
"sizeBytes": 23702,
"appIDs": [
"5LL7P8E8RA.com.airbnb.app",
"5LL7P8E8RA.com.airbnb.appenterprise",
"9BPWRS9A4J.com.airbnb.app",
"9BPWRS9A4J.com.airbnb.appenterprise",
"9BPWRS9A4J.com.airbnb.oneoff",
"KYLDQ3QJT3.com.airbnb.app",
"KYLDQ3QJT3.com.airbnb.appenterprise"
],
"services": {
"applinks": 1,
"webcredentials": 7,
"activitycontinuation": 7
},
"componentRules": 332,
"legacyPathRules": 0
},
"android": {
"found": true,
"url": "https://airbnb.com/.well-known/assetlinks.json",
"statusCode": 200,
"contentType": "application/json",
"sizeBytes": 11285,
"statements": 61,
"apps": [
{
"packageName": "com.airbnb.android",
"fingerprints": [
"43:7B:7C:9A:94:6C:3C:E9:F2:49:A4:30:86:14:F5:42:C1:4D:7C:7A:3B:C9:77:89:98:4E:02:47:CD:23:01:FB"
],
"relations": [
"delegate_permission/common.get_login_creds",
"delegate_permission/common.handle_all_urls"
]
},
{
"packageName": "com.airbnb.android.development",
"fingerprints": [
"C7:0D:F7:A2:50:A8:B7:AA:CC:58:E5:2E:48:3C:17:15:25:0B:6F:F8:FB:7C:19:72:43:C7:BF:C2:13:7D:CB:6C",
"43:7B:7C:9A:94:6C:3C:E9:F2:49:A4:30:86:14:F5:42:C1:4D:7C:7A:3B:C9:77:89:98:4E:02:47:CD:23:01:FB"
],
"relations": [
"delegate_permission/common.get_login_creds",
"delegate_permission/common.handle_all_urls"
]
},
{
"packageName": "com.airbnb.android.myflavor.development",
"fingerprints": [
"C7:0D:F7:A2:50:A8:B7:AA:CC:58:E5:2E:48:3C:17:15:25:0B:6F:F8:FB:7C:19:72:43:C7:BF:C2:13:7D:CB:6C"
],
"relations": [
"delegate_permission/common.get_login_creds",
"delegate_permission/common.handle_all_urls"
]
}
],
"webTargets": 58,
"handleAllUrls": true
},
"issues": [],
"issuesOmitted": [],
"issueCapPerCode": 10,
"cached": false,
"checkedAt": "2026-10-21T01:54:19.609Z",
"note": "Checks how the association files are served and whether their contents are well-formed. It does not verify that a signing certificate actually matches a sha256_cert_fingerprints value, does not verify that the app exists or is installed, does not test that the operating system routes a link into the app, and does not follow Apple's CDN caching. Fingerprints and App IDs are checked for format only."
}
curl --location --request GET 'https://zylalabs.com/api/14380/deep+link+association+checker+api/36042/check+universal+links+and+app+links+files+of+a+domain?domain=airbnb.com&platform=both' --header 'Authorization: Bearer YOUR_API_KEY'
After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Deep Link Association Checker API simply include your bearer token in the Authorization header.
| Header | Description |
|---|---|
Authorization
|
Required
Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.
|
No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.
Check a domain's iOS Universal Links and Android App Links files in one call. Returns a score, a grade and coded findings. Redirects are reported, not followed.
The apple-app-site-association file for iOS Universal Links and the assetlinks.json file for Android App Links on a domain. It returns a score, a grade and findings with stable codes.
It checks format and serving only. It cannot verify that a signing certificate matches a fingerprint, that the app exists, or how the operating system routes a link.
No. Apple and Google both require the files to be served directly, so a redirect is reported as an error instead of being followed.
Yes. Set the platform parameter to ios or android. The default is both.
Yes. Results are cached for 15 minutes. Set the fresh parameter to 1 to bypass the cache, for example right after you change a file.
The endpoint returns a comprehensive report on a domain's iOS Universal Links and Android App Links files, including a score, grade, and detailed findings. It provides information on the presence of the files, their status codes, content types, and associated app IDs.
Key fields include "domain," "platform," "grade," "score," and detailed sections for "ios" and "android" that contain information such as "found," "url," "statusCode," and "appIDs," among others.
The response is structured in a JSON format, with top-level fields for domain and platform, followed by a summary of errors and warnings, and detailed sections for iOS and Android findings, including specific attributes for each platform.
The endpoint provides information on the existence and validity of the apple-app-site-association and assetlinks files, including their URLs, status codes, content types, and the number of associated app IDs and services.
Users can customize their requests using parameters such as "platform" (to specify iOS, Android, or both) and "fresh" (to bypass cached results). The default platform is set to both if not specified.
Data accuracy is maintained by directly fetching the files from the specified domain without following redirects, ensuring that the reported status codes and content types reflect the actual server responses.
Typical use cases include verifying the implementation of deep linking for mobile apps, troubleshooting issues with Universal Links and App Links, and ensuring compliance with platform requirements for app linking.
Users can analyze the score and grade to assess the quality of their deep linking setup, review the summary for errors and warnings, and use the detailed findings to make necessary adjustments to their app linking configurations.
To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.
You can’t switch APIs during the free trial. If you subscribe to a different API, your trial will end and the new subscription will start as a paid plan.
The free trial lasts for 7 days and allows you to make up to 50 API requests.
No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.
Yes. If the API offers a free trial, you will see a "Free 7-Day Trial" option in its Pricing section. The trial lasts for 7 days and allows up to 50 API requests, enabling you to evaluate the API before subscribing to a paid plan.
Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.
You can monitor your API usage through the response headers included with every request:
x-zyla-api-calls-monthly-used: Shows the total number of API requests you have used during the current billing period.
x-zyla-api-calls-monthly-remaining: Shows the number of API requests you have remaining for the current billing period.
Yes, you can cancel your subscription at any time. Simply go to the Pricing section of the API you're subscribed to and click the "Unsubscribe" button.
Please note that upgrades, downgrades, and cancellations take effect immediately. Once your subscription is canceled, access to the service will end immediately, regardless of any remaining API calls in your quota.
Please have a look at our Refund Policy: https://zylalabs.com/terms#refund