Google-Extended is a specific user-agent token introduced by Google to give website owners more control over how their content is used. By blocking this user-agent in your robots.txt file, you can prevent Google from using your site's data to train its large language models (LLMs) and other generative AI technologies.
This is significant for developers and content creators who want to protect their intellectual property or control the monetization of their content. While blocking Googlebot would remove your site from Google Search results, blocking Google-Extended specifically targets AI training without impacting your organic search visibility.
To implement this, you would add the following lines to your robots.txt file:
User-agent: Google-ExtendedDisallow: /
This tells Google's AI training crawlers not to access any part of your site. It's a key tool for managing your digital footprint in the age of generative AI.