AI crawler access · github.com
Does github.com block GPTBot and other AI crawlers?
GPTBot: partially blockedAs of 2026-10-01, the robots.txt of github.com blocks 1 of 29 AI crawlers on the home page and partially blocks 4 more: GPTBot is partially blocked, ClaudeBot is partially blocked and PerplexityBot is partially blocked.
- Policy: Blocks training only (Training crawlers blocked, AI search and assistant crawlers allowed)
- AI search access: 100% of the AI search and assistant crawlers we track may fetch the home page (these decide whether AI answers can cite the site).
- robots.txt: found at
https://github.com/robots.txt - llms.txt: yes
- Content-Signal: none
- Category: Tech · popularity band: Tranco 1-100
- Last checked: (daily)
All 29 AI crawlers on github.com
Status for the home page (/) under github.com's robots.txt. Partially blocked = home page allowed, some paths disallowed.
| Crawler | Operator | robots.txt |
|---|---|---|
| Training crawlers | ||
| GPTBot | OpenAI | partial |
| ClaudeBot | Anthropic | partial |
| Google-Extended | allowed | |
| Applebot-Extended | Apple | allowed |
| Meta-ExternalAgent | Meta | allowed |
| Amazonbot | Amazon | allowed |
| MistralAI-Training | Mistral | allowed |
| CCBot | Common Crawl | allowed |
| Bytespider | ByteDance | blocked |
| cohere-ai | Cohere | allowed |
| AI search crawlers | ||
| OAI-SearchBot | OpenAI | partial |
| Claude-SearchBot | Anthropic | allowed |
| PerplexityBot | Perplexity | partial |
| Google-CloudVertexBot | allowed | |
| Applebot | Apple | allowed |
| meta-webindexer | Meta | allowed |
| Amzn-SearchBot | Amazon | allowed |
| DuckAssistBot | DuckDuckGo | allowed |
| MistralAI-Index | Mistral | allowed |
| User-triggered fetch crawlers | ||
| ChatGPT-User | OpenAI | allowed |
| Claude-User | Anthropic | allowed |
| Perplexity-User | Perplexity | allowed |
| Google-GeminiNotebook | allowed | |
| Google-Agent | allowed | |
| meta-externalfetcher | Meta | allowed |
| Amzn-User | Amazon | allowed |
| MistralAI-User | Mistral | allowed |
| Ads review crawlers | ||
| OAI-AdsBot | OpenAI | allowed |
| meta-externalads | Meta | allowed |
Compared with other tech sites in the index: 4.5% of them block GPTBot and 5.2% block ClaudeBot (n=154). Across all 853 readable sites: 17% block GPTBot. All tech sites →
History
No change in the latest daily run. We re-check github.com every day; changes show up here and on the index page.
FAQ
- Does github.com block GPTBot?
- Partly. As of 2026-10-01, https://github.com/robots.txt allows GPTBot (OpenAI's AI training crawler) on the home page but disallows some paths.
- Does github.com block ClaudeBot?
- Partly. As of 2026-10-01, https://github.com/robots.txt allows ClaudeBot (Anthropic's AI training crawler) on the home page but disallows some paths.
- Does github.com block PerplexityBot?
- Partly. As of 2026-10-01, https://github.com/robots.txt allows PerplexityBot (Perplexity's AI search crawler) on the home page but disallows some paths.
- Can ChatGPT search (OAI-SearchBot) crawl github.com?
- Partly. As of 2026-10-01, https://github.com/robots.txt allows OAI-SearchBot (OpenAI's AI search crawler) on the home page but disallows some paths.
- Does github.com block Google-Extended (Gemini training)?
- No. As of 2026-10-01, https://github.com/robots.txt allows Google-Extended, Google's AI training crawler, on the home page.
- Does github.com have an llms.txt file?
- Yes. github.com serves a plain-text /llms.txt file (checked 2026-10-01).
- How can I check github.com or my own site again?
- Use the free AI crawler checker at tools.yukai.uk/free/ai-crawler-checker (no sign-up). To check many sites and get alerts when rules change, use the AI Crawler Access Checker on Apify.
Similar tech sites
- google.com Open
- cloudflare.com Open
- microsoft.com Open
- apple.com Open
- mail.ru Open
- office.com No robots.txt
- bing.com Open
- wordpress.org Open
- icloud.com Open
- yahoo.com Blocks some AI search
- adobe.com Open
- qq.com Open