To detect if a website has ads on Google, you can follow these steps:

1. Open the website in a web browser.
2. Right-click on an empty area of the website and select "Inspect" or "Inspect element." This will open the developer tools panel.
3. In the developer tools panel, look for the "Elements" or "Inspector" tab.
4. Use the search feature (usually denoted by a magnifying glass icon) within the "Elements" or "Inspector" tab and search for keywords related to Google Ads, such as "adsbygoogle," "google_ads," or "doubleclick.net."
5. If you find any lines of code or HTML elements related to Google Ads, it indicates that the website has ads from Google.

Please note that this method assumes the website is using Google Ads or Google AdSense to display their ads. There are other ad networks and ad platforms as well, so this method may not detect ads from those sources.