AI visibility plays a crucial role for SEOs, and this starts with controlling AI crawlers. If AI crawlers can’t access your pages, you’re invisible to AI discovery engines.
On the flip side, unmonitored AI crawlers can overwhelm servers with excessive requests, causing crashes and unexpected hosting bills.
User-agent strings are essential for controlling which AI crawlers can access your website, but official documentation is often outdated, incomplete, or missing entirely. So, we curated a verified list of AI crawlers from our actual server logs as a useful reference.
Every user-agent is validated against official IP lists when available, ensuring accuracy. We will maintain and update this list to catch new crawlers and changes to existing ones.
The Complete Verified AI Crawler List (December 2025)
| Name | Purpose | Crawl Rate of SEJ (pages/hour) | Verified IP List | Robots.txt disallow | Complete User Agent |
|---|---|---|---|---|---|
| GPTBot | AI training data collection for GPT models (ChatGPT, GPT-4o) | 100 | Official IP List | User-agent: GPTBot Allow: / Disallow: /private-folder |
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.3; +https://openai.com/gptbot) |
| ChatGPT-User | AI agent for real-time web browsing when users interact with ChatGPT | 2400 | Official IP List | User-agent: ChatGPT-User Allow: / Disallow: /private-folder |
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; ChatGPT-User/1.0; +https://openai.com/bot |
| OAI-SearchBot | AI search indexing for ChatGPT search features (not for training) | 150 | Official IP List | User-agent: OAI-SearchBot Allow: / Disallow: /private-folder |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.3; +https://openai.com/searchbot |
| ClaudeBot | AI training data collection for Claude models | 500 | Official IP List | User-agent: ClaudeBot Allow: / Disallow: /private-folder |
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected]) |
| Claude-User | AI agent for real-time web access when Claude users browse | <10 | Not available | User-agent: Claude-User Disallow: /sample-folder |
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Claude-User/1.0; [email protected]) |
| Claude-SearchBot | AI search indexing for Claude search capabilities | <10 | Not available | User-agent: Claude-SearchBot Allow: / Disallow: /private-folder |
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Claude-SearchBot/1.0; +https://www.anthropic.com) |
| Google-CloudVertexBot | AI agent for Vertex AI Agent Builder (site owners’ request only) | <10 | Official IP List | User-agent: Google-CloudVertexBot Allow: / Disallow: /private-folder |
Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.7390.122 Mobile Safari/537.36 (compatible; Google-CloudVertexBot; +https://cloud.google.com/enterprise-search) |
| Google-Extended | Token controlling AI training usage of Googlebot-crawled content. | Source link
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