Google-Extended User-Agent & Blocking Rules
Operated by Google. Verify the official user-agent string and safety status for this bot. Use the tools below to run a live crawlability test and get copy-paste robots.txt rules to manage its access. Crawler info last updated on .
What is Google-Extended?
A standalone token that allows web publishers to control whether their content is used to train Google's AI models (Gemini, Vertex AI) without affecting Google Search ranking.
Test if Google-Extended can access your URL
Enter URL to test if Google-Extended is allowed or blocked.
Is Google-Extended safe?
Yes, Google-Extended is considered safe.
This bot is verified and generally respected by the SEO community.
For more information about our safety badges, visit our documentation.
User-Agent String used by Google-Extended
Google-ExtendedHow to block Google-Extended with robots.txt?
Add the following standard robots.txt rule to prevent Google-Extended from accessing your site.
User-agent: Google-Extended Disallow: /
What happens if I block Google-Extended?
Low Impact
Blocking Google-Extended will only prevent AI training on your content. This will NOT affect your search engine rankings or website traffic. Safe to block if you want to opt-out of AI training.
Common use cases for Google-Extended
Understanding how Google-Extended is typically used can help you make informed decisions about whether to allow or block it on your website.
- Collects web content for AI model training
- Gathers data to improve language understanding
- Scrapes text, code, and other content for datasets
- May be used for chatbot and AI assistant development
- Typically does NOT affect search engine rankings