Google-CloudVertexBot
AI assistant fetcherA Google crawler that fetches pages at the request of site owners building Vertex AI Agent applications. It runs on behalf of the customer who set up the agent, not as a general index. Google lists only the substring Google-CloudVertexBot and states its common crawlers always obey robots.txt rules when crawling automatically.
| Operator | |
| Type | AI assistant fetcher |
| Respects robots.txt | Yes (documented) |
| Documentation | Official operator documentation |
Google-CloudVertexBot user-agent string
This is how Google-CloudVertexBot identifies itself in your server logs:
Google-CloudVertexBotHow to block Google-CloudVertexBot in robots.txt
Add this to the robots.txt file at the root of your site:
Block Google-CloudVertexBot
User-agent: Google-CloudVertexBot
Disallow: /Explicitly allow Google-CloudVertexBot
User-agent: Google-CloudVertexBot
Allow: /What blocking changes: Blocking it prevents Vertex AI agent builders from indexing your site for their applications. Google Search is unaffected.
Want to decide for all AI bots at once? Use the AI robots.txt generator.
Other ai assistant fetchers
- ChatGPT-User (OpenAI)
- Claude-User (Anthropic)
- Perplexity-User (Perplexity)
- Google-Agent (Google)
- Amzn-User (Amazon)
- Meta-ExternalFetcher (Meta)
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