How to Set Up app-ads.txt for AdMob and AdSense

If you're a mobile app developer or website owner monetizing with Google AdMob or AdSense, setting up app-ads.txt is essential to prevent unauthorized ad inventory sales and maximize revenue. This guide will walk you through the setup process, explain its importance, and offer a professional service if you need expert assistance.

What is app-ads.txt?

App-ads.txt (Authorized Sellers for Apps) is a file used to verify that only authorized ad networks can sell your app's advertising inventory. It helps prevent ad fraud and ensures higher eCPMs by blocking unauthorized sellers.

Why is app-ads.txt Important?

• Protects your ad revenue from fraudsters selling fake inventory.
• Improves ad quality by ensuring only trusted advertisers bid on your ads.
• Required by Google AdMob and AdSense to avoid ad serving restrictions.

Step-by-Step Guide to Set Up app-ads.txt

Step 1: Generate the app-ads.txt File

1. Log in to your AdMob account.
2. Navigate to "Apps" > "App Settings".
3. Under "App-ads.txt", you will see a Google AdMob seller account ID.
4. Copy the following format and replace [YOUR_PUBLISHER_ID] with your actual ID:

   google.com, [YOUR_PUBLISHER_ID], DIRECT, f08c47fec0942fa0
   

Step 2: Upload app-ads.txt to Your Website

1. Go to your website’s root directory (Example: https://yourdomain.com/app-ads.txt).
2. Create a new text file named app-ads.txt.
3. Paste the AdMob seller details and save the file.
4. Upload the file to the root of your website using FTP, cPanel, or a File Manager.

Step 3: Verify Your app-ads.txt File

1. Open your browser and visit:

   https://yourdomain.com/app-ads.txt
   

2. Ensure the file loads correctly.
3. Google will automatically detect the file within 24-48 hours.
4. Check for errors in AdMob > Policy Center to confirm successful verification.

Common Issues & Fixes

• File Not Found Error: Ensure the file is uploaded to the correct directory.
• Incorrect Publisher ID: Double-check your AdMob publisher ID.
• Google Not Detecting File: Wait for at least 48 hours and check again.

Need Help? Let an Expert Handle It!

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